I don't find the play-ins all that interesting except that it almost allowed my Bulls who don't deserve to be in the playoffs to "be" in the playoffs. But.. they proved they still aren't even good enough for that.
It doesn't change the trajectory of the playoffs as a whole, though. I think the NBA would have to materially shorten the number of games per series to allow a couple of off-nights to sink the better team. That's why the NCAA tournament is almost random, because it's just 1 game, as opposed to a 5 or 7 game series.
And that's the thing, even if my team made it in, they have absolutely no shot at doing anything, so it's just kind of uninteresting. And leads me back to the original point, what does it matter if there's a play-in game or not? You already don't expect anybody past 1-4 in each conference to do anything interesting in the playoffs, so if #10 gets in instead of #6 or whatever, who cares? Not to mention, it's still the NBA, most teams outside of the 1 or 2 worst and the 1 or 2 best in the entire league are comparable to a certain degree.