First, I think it's great that they're making small changes like this to make Buzzerbeater as close to the real game as possible.
As far as the rebounding change, a lot of my Centers and Forwards are very foul prone so this isn't such a great change for me- and as I can only assume that this is the same for many other managers, I am sure that the market price for post players will jump up, so if you have a C/F to sell, now is the time:)
I think I'll wait out the market storm for 2-3 weeks and then make my move on a post player for a backup.