They MIGHT be able to by changing the way saving works, but even then it's unlikely.They can't patch it. For that to be disabled you would need new cartridges. Powersaves have nothing to do with the 3DS itself.
One thing I really want is the removal of the limit for friends. It sucks to keep deleting people when I want to trade with them.
Then don't update? Unless you want to use the eShop in which case it takes about 30 seconds to install a small update like this.Yeah another pointless update to waste my time with.