That's exactly it - if they hadn't explicitly called attention to it, I doubt anyone would have even noticed. They orchestrated their own PR crisis. And all for... what? Who was asking for the uniform update? How does this improve the transit system in any way?
Regardless of one's tolerance for immature jokes, you either have to be oblivious or 300 years old not to notice the implication, and easy material for the inevitable smear campaign when these upstanding citizens next overstep their boundaries. Having an intern get defensive about social media doesn't look great in my book. But, then, such a refusal to accept the egg on one's face is pretty emblematic of the institutional inertia of the TTC.