2k's history of evasion does not make me think good things.
Let's see: either they had to do a ton of stuff and they don't want to publicly acknowledge how much of the game at launch was an incomplete, hot mess
OR
They only did a couple of things and don't want to get slammed in another round of volleys for all the things they didn't get to.
I'm guessing #2 is right. This fix must have been about some real basic accessibility breaks in the game that became apparent right after launch. They worked on those, tested them, and shipped it to Sony & MS for approval. Then they got his with a wave of experienced gamers actually playing the game and finding a ton more problems, some of which they're trying to address in Patch 3, immediately in the works after this patch.
Maybe patch 3 will be out by Christmas.