From a males perspective to acknowledge obstacles is counterproductive. It provides an excuse for failure. If you ignore them they are diminished.
From this (female) engineer's perspective, acknowledging obstacles (defining the problem) is not always but often the first step in charting a course around them (defining the solution). It's a view that seems to be shared by male colleagues.
Depends how big the obstacle is, of course.
A few men I know see male sexism. One colleague is very sensitive to double standards where women appear to get away with behaviour and speech that is not OK from men. Another didn't think sexism was a big deal until he found himself excluded from freelance work for a particular customer because they preferred females. I think he was surprised at his own reaction.
On the other hand ... I asked spouse the other night whether he felt offended by a current beer ad on TV that seems to paint men as bumbling idiots. His response was that he didn't think the ad was aimed at all men, just bumbling idiot beer drinkers.