Maybe because the repo is 2 hours old, provides no actual information other than some hand waving. Also the author asks for $2 Million and doesn't seem to be a Python Core Developer. Given the repos age I'm probably answering to Mark Shannon himself.
Edit: This post wasn't supposed to be an hostile attack against anybody. Just found it odd to ask why an 2 hour old repo wasn't more known. I did not know that Mark Shannon is a core dev. Certainly did not pick that up from the repos contents.
The repository linked mentions that each stage should cost about $500k and there are 4 stages. You can argue that he is not asking for it, but at least he is valuating it at $2M.
200k per year would not be the worst salary to pay a developer for this work, and I'd say he's outlined about 5 to 10 years of work. Feels like you could negotiate a package of escalating compensation contingent on delivery milestones.
Edit: This post wasn't supposed to be an hostile attack against anybody. Just found it odd to ask why an 2 hour old repo wasn't more known. I did not know that Mark Shannon is a core dev. Certainly did not pick that up from the repos contents.