> Ada has no ecosystem, and a lot of the ecosystem that does exist is proprietary,

Not no ecosystem, but yes it's way smaller... probably even smaller than Rust, yes.

> and it brings us back to point #2.

I seriously doubt it. Ada is supported directly in gcc; why would it have any worse platform coverage than anything else?

it would be fun if we could simulate the world where systemd was written in Ada and then read all the comments/criticism