Seems like a solution in search of a problem, or a league in search of a gimmick.
When has conference finals not getting reseeded been a real problem? Normally people talk about conference imbalance, but there was a subpar conference finalist last year and it was from the West. What is gained by having the conference finals be Bucks-Blazers and Raptors-Warriors, with Bucks-Raptors probably just meeting in the Finals instead? Just doesn't seem like it's fixing anything that needs fixing, at the expense of a lot of added travel and weird matchups.
A midseason tournament though - could be fun. That one could be done in a way that breaks up the doldrums of the regular season. Need a good incentive to make the players buy in though.