Ask yourself how many of these things still matter if you can tell an AI to tweak something and it can rewrite your entire codebase in a few minutes. Why would you have to prioritize, just tell the AI everything you have to change and it will do it all at once. Why would you have tech debt, that's something that accumulates because humans can only make changes on a limited scope at a mostly fixed rate. LLMs can already respond to feedback about bugs, features and incidents, and can even take advice on balancing tradeoffs.
Many of the things you describe are organizational principles designed to compensate for human limitations.