No hit, no harm. I get that.
Stinger hits, Hind dies.
https://www.youtube.com/watch?v=avXK07haKK8
A Stinger isn’t a POS SA-7/Strela-2. The SA 2 warhead is 2.6 lbs.
The Stinger system warhead is 6.6 lbs. In this case, size matters.
To be fair, when the SA7 *hits*, it will knock down a HIND
https://www.youtube.com/watch?v=zTw-dAOEClo
Turkey has provided Stingers to the Syrian rebels. They have been used against Russian heavy choppers to no avail. The SU-25 Frogfoot isn’t as heavily armored as modern Russian heavy choppers and it’s been the one eating Stingers and falling out of the sky lately.
Your second video is an Igla taking out a Russian-made Kamov light or medium helicopter, not one of the heavies.
Your first video is from the Sri Lankan conflict. Sri Lanka flies *old* 1976-era Hind-E-but-gimped-for-export Mi-24V’s and some similarly gimped Hind-Fs. Same tech and type that flew in Afghanistan when the Soviets were there, not the improved current versions.
Also, that first video I linked was a direct hit. The second is what you get even from a Stinger if it fails to make a skin to skin hit - it detonates and the idea is that the rods from the annular blast frag warhead will shred the chopper and its rotor. Neither happened here; and yes, that’s what the Stinger does.
That second link looks more like a SA-16 or SA-18