Yes, we truly live in the age of useless bullshit. 99/100 talks I've watched from YouTube make me skip through the bullshit and see if there's even a single slide with some interesting content in it.
I prefer the (open source) videospeed Chrome extension [0]. It gives me a much wider range (thus far I used up to 5 x speed; audio is blanked above 3 x speedup), 0.1 increments - and keyboard control. The latter is essential to me, I can watch sections of online lectures at high speed and quickly slow down without fumbling for the mouse to watch the few sections that demand more attention at lower speed.
Right, but at 2x you can actually watch the whole thing in half the time. If it's not too technical you can come away with 100% of the information. The more technical or unfamiliar accents the more backups you will need.