Sounds like there's a lot of assumptions in your post with weak foundations. If you read W&H legal complaint, everything was running smothly until pedo-boy got involved as the WotC liason.
I don't know much about Nic Kelman other than he works for WotC's magic team, was the liaison on this deal, and wrote a book a long time ago that's either in genre with Nabokov's Lolita, as trying to get inside the mind of the monsters (per some reviews I pulled up just now), or else is really, really, REALLY bad erotica.
But that's what that is… fiction. Did Nic Kelman actually do any bad things?
There's a wide gulf between writing fiction and doing things. I do think that if that book was intentionally written as an expression of his world view and fantasies that that could mean that he brought that into his editorial work with the Dragonlance writers in such a way that hurt their work or made them uncomfortable, but this is all speculation. I'm not defending him or WotC, nor do I desire to equivocate or create a false sense of "both sides" - just that these things are complicated and speculation based on our limited information usually leads to demonisation of the other REALLY REALLY fast.
And then that leads to thread-crapping. So let's not use buzz words like the above UNLESS the guy is actually a criminal, right? Maybe I missed it in my puruse of googling him just now. It's quite possible. But if not, then maybe lets pull back on the speculation re: why the deal got on shaky ground?
Especially when this thread is literally about something almost completely unrelated: what D&D sourcebooks we're getting from WotC in 2022. Dragonlance novels are not sourcebooks. They may imply that we get a Dragonlance source book or not as tie-in. But we're getting the novels after all in the end. So really, that tangent is just the fast-lane towards shutting down the thread for no good reason.