I would agree that deployment story could be better, thing is you have to allocate time to setup CI/CD and all the relevant integrations regardless of what lang

I would agree that deployment story could be better, thing is you have to allocate time to setup CI/CD and all the relevant integrations regardless of what language you are using so the extra one time effort to get things working smoothly for Elixir is not that bad. This is also an area of strong focus of efforts to improve the tooling so I think it will get better in a reasonable amount of time.