You know, that goes to show that if you're doomed to failure, make it so epic that everyone talks about it for years to come.
IIRC there were two criticisms of Flights'n'Tights. One was the invalid "ew, gay superheroes!" one. The other was calling out the "we're inclusive" thing paired with the "no girls!" thing juxtaposed with it. That latter one is valid, IMO.
Oh man, I remember that one! That was an... interesting read, if in an arena of MU*s I'm not as familiar with.