CoG cannot remove or take down a WIP, as they are not the ones hosting them.
I think it’s very important to make a difference there.
They can delete the WIP threads, here on the forum, but that is not the same thing.
Also, any issues between an author and a publisher, is for the concerned parties to handle. None of them actually owes the fans/readers/forum-goers an explanation.
It’s nice of them to provide one, but it’s not obligatory.