It should be noted that the two moderators issued a "what the hell were you thinking?" statement and apology immediately after the hack was presented.
And it was clear- they reacted after they saw the reaction on Twitter. Not after they saw the presentations themselves. If you had those opinions all along how could you stand on a stage and say "up next, Titstare" without even blinking?
Apparently per their Facebook apology, Titstare entered under a different name, with the Titstare name first being seen in the slide deck.
http://www.theatlanticwire.com/technology/2013/09/how-avoid-...
Circle Shake -> Titstare -> Pre-scheduled break -> Apology