> infrastructure and runtime code in one language

This is fertile ground for new languages, apparently they call this the "Construct Programming Model" but there appears to be no meat to the theory. If programming language theory was leveraged properly I think they'd really be on to something. See the success of Rust for example.

I just did some cursory research and came across a paper on "ABS: A high-level modeling language for cloud-aware programming" which would give a much stronger foundation for such an effort than JavaScript.