Sam is very clearly in the wrong here, but is your argument for why he sucks seriously that he said “we should not brand people as heretics for disagreeing with my point of view?”
I get the feeling you may not have gone 0-1 on an API before. In general, you have 1 consumer when you're starting off, and if you're lucky your API gathers more consumers over time.
In that initial implementation period, it's more time-consuming to have to update a spec nobody uses. Maintaining specs separately from your actual code is also a great way to get into situations where your map != your territory.
I'd instead ask: support and use API frameworks that allow you to automatically generate OpenAPI specs, or make a lot of noise to get frameworks that don't support generating specs to support that feature. Don't try to maintain OpenAPI specs without automation :)
This looks like an interesting take on serverless Postgres! Is this type of multi tenant separation enough for the kinds of users who care about it? I’d imagine a lot of the concerns around multi-tenant would be related to potential application layer bugs that can co-mingle data.