Home advantage is interesting to me because of it existing in essentially every sport and it's almost always small enough to not matter a lot but large enough to notice. Lots of factors are attributed but I've never seen someone try to analyze those factors.

You could probably do some minor rules tweak to get rid of it or reduce it further - but I think it's actually a good thing to have a noticeable but small home advantage. You have the same number of home and away games so it evens out in the regular season. So a little nudge for the team that everyone bought tickets to watch seems alright.

I think it's desirable in the playoffs too, even if your goal is for the best team to win the tournament, not just from an entertainment perspective. We deliberately stack the playoffs for the teams that did best in the regular season, both by seeding and by who gets home advantage. There's lots of entertainment reasons this makes sense to me, but it also makes sense to me in terms of making the best team most likely to win. The playoffs are usually less data than the regular season. So this is a way of letting the regular season data have more of an influence on the outcome of the championship.