I'm torn. Josh's history is that he's a relatively chill guy who doesn't condone this kind of thing, but his history is also that he can be a real shitty person and a bully - particularly when drunk/high. It's pretty obvious it was intentional, but I'd like to believe he is sincerely sorry and like a lot of people who have problems with substance addiction he acted pretty shitty in the moment. Given his talks about people leaving him because of substance abuse, I think he definitely needs to seek help before he does something truly self-destructive. I'm not going to be comfortable listening to his music for at least a little bit, regardless, but I don't really think he's sorry unless he actually acknowledges that he seems to have a problem.
One thing that is pissing me off in a significantly smaller way is that the reports are stating it's a "female photographer". What does her gender have to do with him kicking another human being? It doesn't make it any more nor less shitty.