I know what you mean by that. So many stories (and other things) that most of the world see as pro-feminist can be taken just the opposite way, And even the opposite thing can be true - something that you're constantly told is sexist can be PRO-feminist in a subtle way.
I have exactly the same concerns every time I watch ...Perfect Murder. I don't believe that one can ever be taken as entirely pro-feminism though I think if it was intended as anti-feminism it could have been a lot more savage. I suspect it may be anti-feminist but think it's simply meant to be ironic and a commentary on the character of Kay Freestone rather that a general criticism of ambitious women. Afterall it was made clear that if Mark had been prepared to recommend her for the job she'd have got it easily without opposition. Then again I you want to write an anti-feminist critique you probably don't want to be obvious about it my having every as sexist.