When I read this it put me in mind of this post: Tyn - A Rust microkernel that runs BEAM on bare metal (no Linux)
Not only is sovereignty a big deal, but also supply chain security. If you cut out the OS and the container orchestration, you cut out a huge chunk of the supply chain dependencies.
Back to your point, I don’t think it would be Ericsson that would be pushing this - that would be in the remit of the EEF if they choose, and have the bandwidth, to do so.