They would never do it, but I actually think they should expand the playoffs to 8 teams per league...but the entire series is played in the higher seeded teams park, and, the lower seeded team always has to win 4, but the #1 seed has to win 1, #2 has to win 2, #3 has to win 3, and the 4-5 is a true best of 7.
It keeps more teams interested longer, but much like my take with the 12 team, 10 automatic bid NCAA football tournament, those lower seeds will advance so irregularly, that it won't actually matter that they aren't any good. If the White Sox and Giants can go into Houston or LA and beat them 4 straight times in their building, good on them, I guess. They won't, but the hope that they could, would still make the races for those bottom seeds engaging. Just like how bottom seeds basically never advance in the NBA playoffs