These threads: An update on Patreon’s API - Updates - Patreon Community
The API has been abandoned - Tools - Patreon Community
And:
As of June 22nd, 2020, we are no longer actively maintaining the API due to resource constraints.
That’s all that matters. Patreon abandoned their API. What happens now is we wait for someone to exploit it, and for Patreon to shut it off entirely rather than invest in fixing it. Remember Google+? Just kind of on life support for years because no one in the company wanted to touch it, then someone hacked it, and it got shut down.
It doesn’t matter how well PMP uses the API because the API is doomed unless Patreon starts taking it seriously.