ATD (to my knowledge) has never had a 32-team playoff- and I don't think now's the time to start.
I have two BIG reasons why I think top-2 from each Division is the way-to-go:
1) 16 teams is [IMO] the default assumption. Not unreasonable to think that the default assumption influenced the way people drafted. If all teams except 8 make the playoffs, how do the relatively high selections of the Tony Espositos, Stan Mikitas and Marcel Dionnes of the world look NOW?
2) There are some exciting up-and-coming projects in the wings. OPPF for one. Auction draft for another. If we waste some extra time arguing over whether some chanceless team has a chance of knocking out the Division-winner in Round One, then that delays the start of some of our more potentially fresh and groundbreaking initiatives.