Well that is a lousy idea. They also love small divisions too, so when we go to 8 4-team divisions you will have some mediocre division winners and teams with the best record in the league coming from weak divisions.
When they have 32 teams the ideal system is 12 playoff teams. 4 division winners get byes. 8 wild card teams playoff in 3-game series (make them all at the home of the higher seeded team to eliminate travel). Then you have 5-7-7 as we do today in the last 3 rounds.
This gives them the extra games they need with fewer gimmicks and little added length to the postseason (which also could be helped by going to 154 or 156 games in the regular season). They can eliminate play-in games too. Every other sport has tiebreakers.