I wonder if, for such larger proposals that are likely to consume a ton of community resources, the proposer should show up to one of the workgroup/steering group meetings and discuss the strategy around it. That way, the group that's likely to have a hand in finally approving the proposal can provide an early feedback and ensure the community member truly is a human with all this necessary knowledge in their head, not just someone prompting LLMs.
Not making an accusation, in fact this would allow more LLM usage without DDoSing the entire community with walls of text.
There needs to be some proof-of-knowledgable-human in the early stages of massive proposals. Joining a community meeting is just one idea, maybe there are others that can't easily be gamed with more LLM tooling.