They just keep upping the ante on these Couch Gags, don't they?
I'm generally not crazy of using recycled plots (sounds too much like Bart raising bird eggs that turn out to be lizards), but Bart's antics with the pigeon were hilarious. Unfortunately, it intersected with the recycling of every "Dump Santa's Little Helper" plot, which I couldn't care for too much. I do, however, love watching Bart do the strangling this time around.
Milhouse: I thought your race car was a Transformer. Nothing's one thing anymore!
I am guessing that this is precisely the reason that this "titillating" detail was revealed in a webisode and not in an actual episode of the show. Frankly, I don't find it all that titillating or shocking, but to each their own.