"There's no reason to ever have anything non-open in your FOSS project's infrastructure."
Except, that it is easier to set up? What you describe sounds reasonable. But someone needs to set all that up and host it and needs to be trusted etc.
So I guess if many people get involved and do set this up, they would convince the rest of the team to join them. But right now it is just a demand for more work for them.
You are correct, of course. If the project leadership does not see a value in using open infrastructure, of course it would look like additional (and unreasonable) demand. It's up to them.
Except, that it is easier to set up? What you describe sounds reasonable. But someone needs to set all that up and host it and needs to be trusted etc.
So I guess if many people get involved and do set this up, they would convince the rest of the team to join them. But right now it is just a demand for more work for them.