I assume kyle was just yanking our chain.
I don't think so, look at some of his other posts.
If suppressors were a modern invention, we would probably be REQUIRED to use them. Mufflers are already required on cars, trucks, atv's, motorcycles etc. The people who live down the road from the shooting range would certainly be happier if suppressors were used. It's not as if they make a gunshot whisper quiet (except a .22LR perhaps) Yes.
As far as pulling the trigger...if the noise were suppressed enough that you could shoot without hearing protection, wouldn't that be a bonus? Yes!
Especially for hunting, since wearing ear protection makes it impossible to hear if a deer is approaching. Yes.
The ban on suppressors doesn't really make any sense. You are correct.
There is little or no crime that has benefited from the use of a suppressor, and they apparently are relatively simple to make. If you were a criminal, you could already be in possession of a suppressor, although apparently there is not much advantage, or criminals would be using them to commit crime. Bingo!