I don't understand what the obsession with Bruce Lee is. He was fit to be sure, but he was never really "peak human" when compared to other atheletes. He wasn't the fastest nor strongest man alive, he was just a really good martial artist.
I think it’s a type of plot induced stupidity with people not realising how much it takes to perform those feats. It’s entitely possible to punch holes through a plaster wall which you would likely have in your house or fall into a small brick wall and knock it over. However the writers likely take this from the real world and exaggerate it thinking an athlete could be thrown through a stone wall and survive of bust down most walls if hey ran into them hard enough not realising this ends up making them powerful enough to easily take a bullet to the head.