I completely agree that calling Sucker Punch misogynist is basically saying, "Women can never wear skimpy outfits or be protrayed as being victimized," so it's not misgynist.
I disagree with everything else you said. Remember that film "The Room" by Tommy Wiseau? After it premiered and absolutely tanked, he came out and said it was a black comedic farce intended to suck to make you laugh. I simply don't grant that. I have no room in my head or my moviegoing experience for a director to come out after, or even before, the fact and say, "You're watching it wrongly." If the film itself can't prove to me that that is "what it's about" then the film failed and not my inquisitive moviegoing brain. Seriously, just how does a striptease parallel to shooting Nazi zombies? Furthermore, why am I supposed to believe it's a good plot device that a pubescent dancer is so great at sexy dancing that it literally stuns the men who see it? Then you've got the pretty aritrary death of two of the main five female characters, which has nothing to with subtext and is just a lazy way to whittle down the protagonists because this is the kind of story where only one person is allowed to survive. Besides, what does it mean for a person to lambast sleazy moviegoing audiences while delivering to them a sleazy movie? that's like a vegan serving hamburgers to his guests and then retreat back to the kitchen to scorn them. No thanks to that kind of self-unaware pretention.
It's not just that Sucker Punch doesn't get to say, "No, we're LAMBASTING that stupid stuff instead of glorifying it," it's that it doesn't serve up a good movie on any basis. The plot is like something out of an 8-bit video game, the characters are as deep as their monikers, and the events do pretty much nothing to make you care about anyone except by saying, "Hey, they're in a crappy asylum and people are abusing and killing them. Be invested." Sucker Punch just didn't work, on any level.
But yeah, it's not misogynist.