You do realize that your title and post completely contradict each other, right? It's pretty anti-feminist to state that FemShep was "acting like a guy" or that women can't be masculine. Not to mention you're implying that men can't be tender.
edit- OP changed the title to say "feminine" instead of "feminist" so the above is somewhat irrelevant. I still don't see a problem with how FemShep was depicted. She was a strong, brave, confident, intelligent, independent and compassionate (maybe) woman, and I wouldn't have it any other way. Not sure which of those traits are suppose to belong to men.
Indeed, there's nothing that's typically feminine -.- (it's IMHO just how someone was raised - I've known girls who grew up with single dads and they acted more like what's typically seen as male than I did (and I grew up with a single dad at first, too and a patchwork family later on))
Seeing men as brutes (who can't be tender) is bad form, too OP (yes, OP, I know you aren't directly saying that but the implication is there!)
Also, I like Shep (my first run was as a female - something which I almost always do if the game offers me that choice, despite being male in RL) and I like how she's not a damned princess (hell, I imagine her burning dresses rather than wearing them and I like it that way!)
So all in all I agree with the quoted posting 
greetings LAX
ps: Game heroes aren't princesses with make-up etc. (and they should not be, a hero is somebody exceptional, somebody who doesn't care about his/her looks that much (though not to the point of running around smelling like a trainstation restroom or a hobo/bum) and is decisive and loud (if need be) rather than meek)