At first it might seem shocking, because many thought the Celtics had the better and more talented team, but a) didn't turn out to be true and b) even if it was kind of even the team with the best player won.
That's what usually happens in the NBA when the talent level is on par. Curry was miles ahead of Tatum. The point is: The Celtics won 2 series against MIL and MIA in which the opponent had the best player on the floor. That's not a recipe for success. But I didn't think Curry had such a finals series in him. Yes, the defense against him wasn't as good as advertised, but he just flat out beat them with tough shots left and right.
It is what it is, you cannot be too mad about this team. In the end they lost against a better team, it happens.
Will the Celtics ever get back with this core and eventually win? I doubt it if Marcus is part of it. Jury is still out on Tatum if he can lead the C's to a title as a true superstar. Smart is not good enough of a 3rd string player. The most impressed over these playoffs I have been with Brown. He didn't play like a true superstar, but he was very consistent against any opponent, no matter what teams threw at him. He can IMO definitely be a #2 on a championship-team.
What they need to do is move on from Smart. They may have to go all in with Beal. I have never been a huge fan of him, but he may want to come here and may have great chemistry with Tatum.
If not Beal, they should go after Brogdon or Lonzo Ball to replace Smart.