Having two wild card teams seems like a good idea except when it isn't. Last night a team that was 16 games behind the other WC team, had a shot at moving on by winning one game. That really lessens the importance of the regular season. I know it's about money, so I'm sure that 2 WC teams will remain.
Here's an interesting fact. If MLB had stayed with the one WC team format, the Yankems and the SOX would still have had that one game winner take all at Fenway.