The law of unintended consequences at work.
Baseball is such a different sport. I think the regular season should be at least as important as the postseason. It should matter more (my opinion, obviously). At first glance, I dislike the idea of wildcards in baseball because it rewards mediocrity, but at the same time, if it also results in teams building for multi-year success, that's a positive outcome.
I don't think it addresses the fundamental problem of "small market" teams losing marquee players to free agency, though. Only revenue sharing will achieve that, and I don't see people with the Ricketts mindset willing to share the wealth.