For as much whining went on about defense, I'd bet money that they did something about it. Ask the mods. They can ask the devs directly. Or Simballer.
As for My Player, I think that based on the change in the patch, they never intended to allow for variable length quarters. That means that the mode was BALANCED for 5 minute quarters. So, that says you're stuck with it for 2K10 unless they decide to let you break the balance of the mode. I can't imagine trying to accomplish some of these objectives with longer quarters (limit your opponent to 6 points...). Yikes.
Anyway, for ANYONE to whine and moan about this HUGE patch list and call it a waste considering everything on that list is pathetic in my opinion. You'll never be happy. Life sucks.