Speaking of Evans this is another ex Man City player getting accused of rape (albeit statutory)
As for the ostracisation it's a weird one to predict because in the eyes of some doing anything with someone legally classified as a child will be at least equally abhorrent, even if they were consenting to the act, which is what I'm assuming from "having sex with" (but not legally consenting obviously). However I'd suggest that the biggest issue with Evans was that he was an aggressive rapist who outright violated someone; Johnson being a technical rapist seems easier to forgive in comparison, especially if there's reasonable belief that he thought she was of age.
Still I suspect that it'll end his career, if nothing else because of the Evans rape still being fresh in the minds of fans, advertisers, the media and clubs