Thing is, though, it’s a paradox: the accused (of rape etc.) is presumed innocent, but if false accusation is a crime, then the accused (of false accusation) is also presumed innocent…
The nuance of “believe victims” that gets lost in mass hype is that it isn’t supposed to be an abolition of the presumption of innocence but a culture shift away from “oh so you claim you were raped eh well what were you wearing how many drinks did you have why didn’t you keep your knees together” etc. etc., towards presuming people who report sex crimes are not liars or confabulators, the way people who report other crimes are not presumed to be liars or confabulators (unless they do it every 5 minutes).
By whom? One article implies Royal Ballet kicked him out. Another implies he chose to leave after he was cleared. 
At least two other companies canceled shows he was supposed to work on, but the details are vague. The Australian one said it was unable to comment for legal reasons.
As a general statement (not about Mr. Scarlett because I don’t know the details), sometimes actions are legal but sleazy/sketchy/dodgy/nasty/bad – the kind of stuff that could result in an official “no further matters to pursue” type decision yet not put the not-being-pursued person into a position of being able to sue anyone for false accusation. Along the lines of you have amazing talent and we value you, but we also value these other people who also have amazing talent, and some of them can’t stand you, so on balance we have a lot of trouble justifying keeping you here like this. Would you want to keep an employee in a situation like that?