Footbrake vs. Transbrake

Thanks. So if I understand correctly...a 4 speed guy is at a disadvantage because the brain to foot signal/reaction is not as fast as the brain to finger/reaction on a button? Like I said I know next to nothing about a transbrake. I am stupid on it all.
Imo, a stick guy can still cut a light on a full tree. On a pro tree, he is at the disadvantage you speak of. Then the stick guy has the problem of hooking up consistently. Lots easier to do with an auto trans.