Ray Rice is a terrible comparison, he was literally on camera beating the holy hell out of his wife.
There is no video evidence or concrete proof against Watson.
If he wasn't found criminally guilty by a judge, he should not be banned for life, that's absolutely ridiculous and sets a very dangerous precedent IMHO.
I'd air on the side that he's likely a creep -- we've seen far worse in the NFL, heck Big Ben was accused of raping a woman, he was never penalized.
You want to ban Watson for a year? Sure go ahead, his whole career? Fuck outta here