Actually, seeing some Reddit comments now that the audio split doesn't work well on mobile. Should work fine on a computer!
If you're talking about the occasional audio cut-outs, that's the team censoring curse words in the video. Rather than a beep, they just cut out the audio entirely.
Vanek was there, and half-heartedly held his stick out. I know he's got a reputation of being less-than-stellar in his d-zone, but in a game this big he needs to lay the hell out for that, or at least have the awareness to know that it's Alexander Damn Ovechkin there and try to fight for that puck.
So, maybe it's partially on Vanek – and sure, Ovi's shot is ridiculous – but it was placed where Bob should (and usually does) make that stop.