We are acutely aware of why Guido is retiring sooner than any of us expected; it has actually been discussed already on the mailing list as to what went wrong with the PEP 572 discussion and how we could potentially fix it. So there's no lack of understanding of why this is occurring now and we have already begun to think about how to address the issue.
Many of us have also been thinking about what we would do when this day arrived for years (Guido has hinted at retiring previously), so there's a lot of pent-up thought to get out there while we all start to think about what comes next to a project some of us have dedicated decades to. The conversation has been thoughtful and not a single person has said "I should be the next BDFL". All names put forward by anyone for any position has been by another.
IOW the insinuation that any of us who are trying to grapple with this are trying to vie for power while ignoring why this occurred does not seem like a fair assessment to me. This kind of unnecessary negativity and accusation is why Guido is retiring early.