I'm biased because point break is one of my favorites so I could see how some would take it as a bad ending but...He got his face nearly smashed into a lawnmower, he got beat up and choked by a bunch of dudes, jacked up his already jacked up knee...twice, watched his friend and partner die right in front of him etc etc etc. He wasn't just catching bad guys. He had it really rough. Realistically he's got PTSD possibly depression. He said the only reason he went to law school was because that's what his parents wanted. This is the first time he found something he actually likes for him instead of doing what others think is best for him. He's presumably still going out with Tyler too so it not just surfing.