I mean, if your multi-year-old project is ever asked to just take a moment to write out a quick formal roadmap and justification ... it is doomed, 100% of the time. The actual content of the request doesn't really matter, it's dead.

To be clear, such a request doesn't even mean that someone is consciously attempting to kill the project (although in the corporate world, ime it probably does). It just means that something went critically wrong. In this case, it appears like python's development process really required a PEP for this sort of work, especially since it was happening on the main branch.