Not really angry at it. It was just silly, on multiple levels. First, it was silly because it didn't make sense within the universe...In the universe the men and women were fighting side by side, often helping each other in 2 person teams. Everyone except Captain Marvel was engrossed in the battle this way...correct? So did all the women just literally abandon the men who were stuck in combat to go help Captain Marvel? There wasn't a chance that in X particular instance, the man might have been less essential to their fight, and could have gone to help Captain Marvel? Only the women could get away from their fights?
Second, it will silly even as a female empowerment theme...because it totally undermines how important the women were in the actual fight. You might not have noticed....but your brain did. Because every single guy could not break of their engagement, they were in heavy combat and absolutely essential in the roles they were playing to the point where at ANY point, only a single guy could get free to run the gauntlet--that's the ENTIRE reason only one person was running the gauntlet up to that point. Then, Captain Marvel lands...and all the women just leave their posts. Were they not important on the battle field? Are they so inconsequential to the actual battle going on that they can also leave at a moment's notice the moment they hear a fellow woman needs help?
The shot would not NEARLY have been as bad if it was all women, but not ALL the women...Like if Just Wasp and Valkyrie and Potts go to her, given they can all fly and evade the mess on the ground. It would make sense, and you still get your girl power shot. But no, EVERY woman on that field was able to leave what they were doing and STRIKE A POSE! Of course it drug people out of their sense of disbelief, because it violated a bunch of parameters of logic in the story which had set up...Ironically one being that those women were competent and essential to the battle.
That's why. Not because they got some screen time. That's a false attribution that's meant to disregard the logic behind why people are annoyed by painting it as some kind of sexism...and its that won't let anyone actually learn why it didn't work.