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True: But when I read the USNI Proceedings articles from that, I found that the shock of impact did knock out power though. Not as long as some other Falkland-hit ships, but in crossing through the hanger, the impact was not as trivial as it sounds.

From the earlier cited "hazegrey" web site:

Section F.6: Royal Navy losses during the Falklands War

The following Royal Navy ships were lost or damaged during the 1982 Falklands War. Data provided by Michael P. Reed, from Air War: South Atlantic (Jeffery Ethell & Alfred Price).

* 1 May 1982: Arrow (F173) damaged by 30mm cannon fire, Glamorgan (D19) by bomb splinters, by three Daggers of Grupo 6 off Port Stanley.
* 4 May 1982: Sheffield (D80) hit by an Exocet from a Super Etendard from 2nd Naval Fighter and Attack Escuadrilla at 11:02AM, 100 miles south of Port Stanley. It is generally thought that the missile did not explode, but some claim it actually did explode. Sheffield sank under tow 10 May.
* 12 May 1982: Glasgow (D88) hit by a 1000 pound bomb, from an A-4 from Grupo 5, which passed through the ship amidships leaving 3 foot holes near the waterline, before exploding outside the ship. Glasgow was forced to withdraw from the operational area to make repairs.
* 21 May 1982
o Argonaut (F56) suffered light damage from a Macchi 339 of 1st Naval Attack Escuadrilla off San Carlos Water at 10:36AM. At 2:30 she was attacked by six A-4s and severely damaged by two 1,000 lb bombs. One hit just above the waterline between the boiler and engine room, hitting seveal steam pipes, exploding a boiler, and destroying part of the steering gear. The second hit below the waterline, passed through two fuel tanks, the sonar compartment, and into the Sea Cat Magazine detonating two missiles. Neither bomb exploded.
o Antrim (D18) hit in the stern by a 1000 lb bomb from a Dagger of Grupo 6 which "pierced her missile loading doors, narrowly missed a fully armed Seaslug missle, smashed through a fan compartment and a pyrotechnic locker, then demolished a calorifier before it came to rest in a lavatory area." The bomb failed to detonate.
o Broadsword (F88) strafed by Daggers of Grupo 6 off San Carlos Water at 11AM and again at 2:40.
o Ardent (F184) attacked at 2:30 by Daggers of Grupo 6, and struck by a 1000 lb bomb which exploded near the stern, destroying the Seacat launcher. At 2:45 PM was attacked by A-4s of Grupo 5 and hit by two bombs which exploded toward the stern. Shortly thereafter attacked by 3 A-4s of the 3rd Naval Fighter and Attack Escuadrilla, and struck by at least two Mk82 Snakeyes. She sank some six hours later. Regarding the use of aluminum in the construction of this ship, the authors remark:
"Several commentators have written that modern warships with aluminum structures are not strong enough to sustain major battle damage. The example of this particular frigate would suggest otherwise. 'I was amazed how strong she was, she had taken one hell of a hammering,' commented Alan West. Later the board of inquiry into the loss of Ardent would establish that she had been hit by no fewer than seven 1,000-pound and 500-pound bombs which exploded, and at least two others which lodged inside her but did not go off."
o Brilliant (F90) lightly damaged by strafing off San Carlos Water.
* 23 May 1982: Antelope (F170) attacked by A-4s from Grupo 5 and the 3rd Naval Fighter and Attack Escuadrilla in San Carlos Water, and hit by two bombs, which did not explode on impact. One bomb later detonated while being defused, blowing a hole from the waterline to the funnel and starting an uncontrollable fire which later ignited the magazines, resulting in Antelope's loss.
* 24 May 1982: Sir Bedivere (L3004) had a bomb "glance off her foredeck", ricochet off the water and hit Sir Galahad (L3005). Sir Lancelot (L3029) was hit by another bomb on her starboard side. Neither bomb exploded.
* 25 May 1982
o Six A-4s of Grupo 5 attack Broadsword (F88) and Coventry (D118) off Pebble Island. Two first attacked Broadsword whose FCR broke lock, and was hit by a bomb skipping over the water in the stern and through the flight deck and a Lynx, but did not explode. 2nd pair attacked Coventry who crossed in front of Broadsword again causing the FCR to break lock, and was struck by three bombs all which exploded; she capsized and sank.
o Two Super Etendards, after refuelling from a KC-130, attack the Task Force from the north firing their missiles at the carriers. The missiles were probably decoyed by chaff, with one relocking onto Atlantic Conveyor (a civilian container ship under charter to RN), which was hit on the port side and exploded. She burned out and sank on 30 May.
* 8 June 1982
o Plymouth (F126) attacked by five Daggers from Gruppo 6 off San Carlos Water, and hit by 4 bombs which failed to explode. One went through the funnel; two skipped off the water, traveled through the Limbo mount, and out the other side. The fourth bounced off the flight deck exploding a depth charge.
o Five A-4s from Grupo 5 attacked Sir Tristram (L3505) and Sir Galahad (L3005) off Fitzroy. Both ships were severely damaged by exploding bombs; Sir Galahad was later towed offshore and scuttled.
* 12 June: Glamorgan (D19) damaged by a shore launched Exocet, which failed to explode.

...

(The first British who got hit in the hanger had the bomb cross through the Lynx helicopter, destroying of course, its a major part of it ASW force.

In all, the British - had we told the Argentine Air Force how to arm their US-bought 1000 lb bomb fuses for low level operations, would have lost some 30 percent of their entire Navy.

Funny that we forgot to issue that page of the manual.