The "Perfection Line" has been together now essentially since the 2016-17 season. That's a long time for one line of players to play together. Everything begins to go stale eventually. Bad habits emerge. Guys get complacent. And if playing with two of 63/37/88 is the brass ring, where is the opportunity to grab ahold of?
It was great, they can still use it at times. AND we still get to see the 3 of them together on the PP.
But 5 on 5, it's time to move on and spread the talent out.