I ride down SB every time I go through, full rigid karate monkey w/o dropper, 29+ hardtail with dropper, whatever I'm riding. I usually just take it r e a l l y slow, slower than in the video above. I've never video'd for confirmation, but I'd be real surprised if both wheels are ever off the ground at the same time, and I'm not lifting the front wheel much if at all. Basically pure rolling the drop, with a TON of weight transfer to keep me from endoing. Get your butt way back and your belly button on the saddle and you'll be surprised at how steep/big of a drop you can roll down without incident. I take basket on picnic pretty much the same way. It doesn't look as cool as hucking it like the youtube guys, but I haven't broken myself yet either...
Of course, Spongebob probably shouldn't be the first drop you try using that technique, start with some of the smaller ones out there and get comfortable with it first.