speaking of science, what you just said? now THAT's idiotic. we've seen him punched, very effectively, and very hard...a LOT of times. what, does the suit magically differentiate between a fist and a blade? it robs a blade of all kinetic energy, but not a fist? hulk could punch him nad what, he'd just tank it thanks to his momentum sapping suit? wtf?? and why would a blade break on the suit? that should be impossible as it would never STRIKE the suit with enough force TO break! if what you say is true, no blow, from ANYTHING, would ever hurt him. the suit would likewise sap momentum from a swipe as well as anything else, and, well, we've seen how well it does that....
your point is ridiculous and has been proven wrong time and again. probably best to just drop it. and not just because that isn't even the suit we're talking about anymore.
oh, and no, it's not a 'staple' either. older suits obviously never had any of those abilities, (back when bp was actually cool) and the new suit has been depicted ambiguously at best.