It seems to me that the only argument for making the question a CW is that it will be easier to maintain a list of card x drivers affected by this. Let's examine that.
Of the six12 12 listed currently, 5 were added by a 20k user, 6 by OP and just one was added via a suggested edit. One edit out of 7 revisions. That's not enough to argue that the post should be made CW for making editing easier. Even CW posts need 100 rep to edit, at that level, the user can easily comment on the post if they don't feel like editing, and OP or any 2k+ user can edit that in.
I would rather the list, if at all we need a list1, be maintained in an answer. A single answer can be made CW quite easily, is just as included in search indexes as the question and most importantly, doesn't affect any of the other posts in the question.
1 Just considering that 6xx models are affected implies dozens of cards spanning years would be affected. Nobody, not even the users we're so worried about, is going to maintain such a list.