No, it didnt, it does now as they are helping fix it.
The publisher has admitted that they palmed the PC port off to an inexperienced and understaffed 3rd party with too tight of a deadline. Not quite sure which part of those three things are nvidia's fault?
The only thing they could have done was go on record as saying they knew it was going to be a problem and have a whinge about the publisher, but that isn't what professional business partners do, sometimes you have to just sit silently by and let that partner, in this case WB, make their own mistakes and then weather the storm that comes after.
Man, aren't you all knowing, yet so gullible

So you are saying that nvidia did not involve themselves in Batman PC port development? Well, so which is it when? do they get involved or do they just send the check and drop the gameworks code to devs and leave it at that?
nvidia backers chose one of the possibilities when it is useful to their agenda.
Seeing how half arsed the game came out, I would say nvidia did not involve themselves in optimizing or developing the game, they just wrote a fat check and dropped the gameworks code at the doorstep. Since any self respected company which is not developer, but is 'helping' to bring best experience to its customers(read: nvidia) would have raised red flags all over the place saying that game is literally unplayable. And would have strongly advised WB to delay the game to fix it, since hey nvidia backed games have been in the ****er lately, so one more broken game wouldn't look good, especially in such a state.
Witcher, watchdogs, project cars performance issue I can understand, games are still playable, so no need to push the release date. But how Batman came out it is unacceptable. And those who try not to blame nvidia for this, man you guys are worth every crap you buy from ubisoft and WB, which is broken, keep it up.
There is always 2 sides of the story, and the most ignorant and stupid will chose to believe a single side, especially when that ignorant and stupid does not have knowledge of actual circumstances surrounding these issues.
At the moment all the games with nvidia gameworks came out with some sort of issues (watchdogs, AC:Unity, pcars, batman, witcher, can't comment about far cry 4). I don't think we can chalk gameworks plus these issues as pure coincidence. Isn't there a possibility, that rumor about nvidia bringing their gameworks code very late in development is true?
But hey, I'm not the one to stop you from believing that hairworks AA at x64 is better looking than x16. Or that nvidia is a hero here trying to help to fix the game. oh how honorable of them, no? Or that great news that nvidia helped Microsoft to fix some issues of their OS, though when you read the article it says that nvidia drivers were so messed up, that nvidia had to react and release the fix. Or that lovely news about how Intel helped MS to patch their win 10 OS to stop it draining batteries. Though reading the article itself, it was intel based laptops which had issues, not all...
P.S. does anyone remember when Tomb Raider came out? What did nvidia say? They suggested to their customers to DO NOT buy Tomb Raider till they(nvidia) sorts out tress fx issue. That is so kind of them, isn't it? What did AMD suggest when they are hit buy black box gameworks? They suggest to switch it off, until they sort it out. Do we see the difference in the attitude of the companies?