OKC 4-2 since the deadline,
jazz 5-1 (should probably be 6-0), with the league's second best differential
I think it may go down as a "good for both" deal, as rare as those are.
The only reason it's good for the Jazz is they have Rudy Gobert. The more he plays, the better the Jazz are. Jazz would be a better team with Kanter willing to play a backup role. OKC got a great deal because Jazz didn't have much trade leverage. Jazz didn't get good value for Kanter, don't think either of the players they got in the deal will be anything more than end of the bench guys, and the second round pick is going to end up as another European player that will probably never end up in the NBA. The only way Jazz get any value is if they can sign someone in the offseason with the cap space they now have.