Originally Posted by
Zernin
I actually don't believe this to be the case in my head-cannon. I fully believe that the Frost Giant was subject to some really annoying bull**** in her life because she was a woman. I do find that it breaks my suspension of disbelief that any unit that regularly puts their life on the line would want someone to hold back, though I also believe that it's completely plausible that individual frost giants would try and take credit for the feats of others.
TL;DR: Frost Giant Lady faces sexism and others take credit for her work is plausible, others encouraging her to actually perform poorly in life or death situations is not.