This is America, the land of the innovations and inventions that put us very much ahead of the rest of the world If you'd like to stay with tried and true products for bowhunting, that's fine by me but don't try to stop or make light of changes that are coming, popularity will weed the bad ones out. Like my dad said "if you don't want to run with the dogs, stay on the porch and piss with the pups"
Personally, I don't shoot mechanicals because of the price of nearly $10.00 or more each, but I won't hold it against you if you do. I still have a bunch of fixed blade heads that work fine and are very much reusable.
Shoulder shots with high K.E. set ups and tough heads are very lethal, it's been proven. Most all by accident and very few deliberate, I normally don't go there myself either but want the insurance if I do.