I've found Spongebob amusing on multiple occasions, but it definitely isn't something I would ever sit and watch. I appreciate the more adult humor and satire at times, which tend to make for great clips, but there isn't nearly enough of it in the show on a minute-to-minute basis.
And yeah, that trailer did take a bit of a turn for the dark at the end there, no question. Being as fucked up as I am may help with that.