Don't worry, they've achieved both their goals: lowered the maintenance costs by opening and mainlining the few kernel bits that depended on the constantly breaking kernel APIs and do not contain anything potentially interesting to competitors, and got lots of 'shills' (probably the wrong word but I don't know any better) who didn't look into it too deeply and now spread great news for free that Nvidia has fully opened their drivers and the famous Linus gesture not longer applies.