Something not everyone feels
like watching/playing all summer long, during the most casual time of year there is. The way things were done before the pandemic, where the finals ended a month before late July was good enough, since it was good enough from the creation of the league roughly until the pandemic. There never needed to be an
extra month of basketball, where a few
people keep changing schedules and games until the team they want to see win finally does.
By late June,
people have watched enough basketball, there's no
good reason for it to continue a month longer. It doesn't create fatigue for anybody, it's aggravation at a
casual time of year not meant for excessive levels of aggravation, and the aggravation is there no matter what team gets the championship. Late summer isn't basketball time because it never was.