If a man walked up to the booth, would he be asked “are you lost?” “are you here with your boyfriend?” “do you even know what pentesting is?” did enough men without the shirt complain that Blizzard was dropped from future Black Hat events?
The remarks about the t-shirt happened in a context, not as a single bit of unprofessional stupidity but as one example of the overt Misogyny the Blizzard recruiters were accused of.