This proposal strikes me as a good way to accelerate the ossification of computing. If we decide we want to re-write everything from scratch, that should be the opportunity to throw stuff out, and re-think key things. The language itself should determine the paradigm of the OS and software: look at Oberon, Lisp machines, and to some extent the "object oriented" nature of Haiku written in C++. Rust for its part is leading to experimental OS such as Theseus.
Our civilisation more broadly is unable to clear out old stuff to make room for the new anymore. Consider the Boeing 737 - an airframe design that should have been retired over a decade ago. Instead they hang new engines off it and some new avionics and call it "job done".
Likewise, we seemingly cannot throw out old software and design, say, a new OS from the ground up for todays needs whose architecture can be inspired by its own choice of language. Instead we have today's most banal OS like windows and linux translated into a newer language - as if it were some sacred religious text being translated from its native tongue to English. Where is the progress?