It was the only 4-team division for a while. The strike saved mlb from having a playoff team under .500. It would happen all the time if they went with eight 4-team divisions, especially if the keep a somewhat balanced schedule. Trust me, when they go to 32, it’s 4 divisions of 8. You can get away with the 4 team thing in football because it’s 17 games. 162…not so much.
I would do 8 pacific/mtn, 8 central, 16 eastern time zone with rotating 4-team pods.