Their other problem is speed, ~18 mph. Taiwan has a military industrial complex too. If they were wonder weapons instead of boondoggles why ship them to Uke with the CCP promising invasion?
The drone with the 40mm grenade launcher looked better than 60mm. It too would be a one way trip, but wouldn’t have to fly directly above the target to have effects with its limited ammo.
The Straits are a long trip for a country that cannot project power and amphibious operations some of the most complex military undertakings.
Drone delivery is probably great for whatever evolved from the
BLU 108 anti vehicle submunition...
https://www.youtube.com/watch?v=IKBtkR8J2RE
Well I did write in my offhand comment:” And wouldn’t those mortar shells form an interesting blast pattern dropped across the flight deck of a Chinese aircraft carrier!” and could try to defend the comment by saying that technically my comment had nothing to with the drone! (Although I think that I already conceded to your main point about the drone in my original reply!)