A big part of the realism of the game would be lost if the Real Time leagues were all 20-team. When everyone has a near-All Star lineup, the reward for long range planning and strategy is lost.
The experience of building a Real Time team is enhanced for many of us by the challenge of a 24-team league. It's not for everybody. (I'll resist the temptation to refer to 20-team RT leagues as "dumbed down for the masses." Oh, maybe I won't.)
In any event, I have no problem with cutting some teams to 20 in RT, but please let's keep some of them at 24 teams. Really, both are valid, but some of us are seeking the greater challenge of the 24-team RT league.
Dave N