Depends on your taste or work situation. If you like to make lineup changes after every game and can't get to a computer between game 2 and 3 you would say to many.
If we went to 4 games a day (1 every six hours) members who love
to read the boxscores and play by play descripition would be overwhelmed and not enjoy the game.
So I would 3 is still the best, in 24 team leagues most series are 3 games and you can adjust your lineups per series once a day.