The one thing that's working in Watson's favor is there isn't any videos or pictures yet. Thinking back when the NFL took a hard stance it's because there was either video evidence (Ray Rice - never played again) or pictures of violence (Adrian Peterson, Greg Hardy, etc...). Even when there was a video of Joe Mixon completely knocking out a girl in a bar because it happened before he was in the NFL it only lowered his draft stock and there was no suspension from the league.
I'd add, even if there was a video, it wouldn't do much. He propositioned an adult masseuse/IG model and she accepted his offer. The frequency in which he did this is alarming, but at the end of the day how much worse is this than what Robert Kraft did at the Orchids of Asia. I'd actually say what Kraft did was worse. Orchids of Aisa were busted because of their ties to human trafficking. Essentially Kraft asked some unwilling slave's owners for a rub and tug. It sounds like if any of these females weren't interested in Watson's offer it ended there.