I think that those people I wrote about are running BEAM in containers as if it were PHP. No connections between nodes and a load balancer in front of the containers. That should leave them with the niceties of the language, most but not all of OTP, and almost none of the deployment woes people have when unfamiliar with BEAM.
Giving up on containerization isn't an option unless we want to manage two completely separate infrastructures, which we definitely do not want to do.