I would not be surprised if what happened here is that Apple had hardware to release this week and needed to get 27.2 out the door with support for them, and it was "too late" to merge in the certificate store changes. Of course, I think most people here would argue that this is completely unacceptable and I would more or less agree with them, but unfortunately Apple has never been capable of validating a release quickly or pushing small patches. They've tried and, well, most of those efforts have not worked at all. I wonder how they will deal with a new full chain targeting their OSes every week or whatever AI is going to do.