I'm usually all for this kind of Fanservice but on this case? Not so much. Adding my vote to the pile on that one.

And to everything else you said actually. Both Mako and how there are so many shades of gray in this thing, there could have at least been a nod to them - Asami and her possible connection with the equalists was pretty much a lost chance to do it, so was Tarlock and using the equalists as an escape goat (Amon could have easily made a one liner about that one) and there were some more things that could have been said on that - I know we only have 12 episodes but COME ON!