Settlement: To move, Bennett reached a $75 million settlement with the city of Seattle in 2008 to terminate the KeyArena lease early, which allowed the team to move in exchange for leaving the team's name, colors, and history for a potential future team.
I think the above explains a lot. It was a side deal with the city. The new owners got out of a lease and were otherwise allowed to move the franchise, but they had to leave the brand behind.
I'm aware. It also happened when the Browns became the Ravens. I was more commenting on the Lakers needing to leave the banners in Minnesota. I just don't find that to be a strong argument. It comes off as petty since the Lakers are right behind the Celtics in total titles.
The problem is they didn't recognize them until years after they left.
The taxpayers fund where many of these teams play so it does make a case that the titles should stay with the city. The team is tied to that city and the history was made there, supported by the people there. If the Celtics moved to another state, it would be weird seeing it play on the history of a place it cut ties with.
I do however get that they also belong to the franchise and I can see why that argument makes sense. I'm not 100% either way, but I do lean toward the titles staying.