BB teams still tend to prefer faster paces over slower ones.
Level of defense here on BB is probably higher then in a real life, many follow the "offense win games, defense win championships" rule in their trainings, so avergae BB game tends to have lower FG% and thus more rebounds total. See waht happens in all-star games here on BB when defense is reduced (aka players don't care much about defense in the exhibiton game).
So, in the end game simulates RL better than it look on first sight only the approach of team is different so its score and tactics sometimes.
I don't see a point fro longer seasons. It could make teams trapped in a bad situation in the long season to quit more often.