No open licenses of which I'm aware. And I agree with you that a company generally shouldn't issue an open license that includes branding rights, but of course, Wizards of the Coast didn't do that. And that's why Lamentations of the Flame Princess and the like can be in circulation for years without causing any harm to the D&D brand.
I can also understand an executive at some point deciding, "You know, our rules are still associated with our brand and it would be better protected if our license included a morality clause." Perfectly understandable! I'm flabbergasted that you buy the next move: "And that's why I'm willing to nuke the community commons that has been cultivated around my brand for the past twenty years." That's the move that is so blatantly...implausible, let's say...that, even now, it's just extraordinarily difficult for me to believe that you accept it. Especially when the bloody obvious reason is slapping you right in the face!
I don't disagree with any of that. The only thing I might offer in (slight) defense is that they probably assumed that they'd get feedback/pushback under the cover of the NDA and calibrate from there. Maybe?
But I'd love to have been a fly on the wall for the various conversations (and you KNOW that there conversations) between the Hasbro people, Legal, and the D&D people about this .... because this was planned for a while.