As a C's fan, I know I shouldn't say this- especially since they took our team to the woodshed a few times this year - but the NYK fanbase has suffered for like two and a half decades now, so it's good to see the team on the upswing. I also kind of like how they have an underdog mentality and a star player who has blossomed in to an elite all NBA guard out of thin air.
The Celtics-Knicks rivalry has never really been a thing in my lifetime, but I think it would be great for the sport and the cities.
Realistically, the team will stagnate and eventually tune out Thibs in the future- But for now: Go Knicks! (as long as your not plyaing the Celtics)