I've had a good number of conversations actually with some NASA FSW coders, and in general
they're open to these ideas. NASA has a project with architectural and structural goals pretty well-aligned with what we set out to do at Kubos:
https://cfs.gsfc.nasa.gov/Features.htmlThe biggest challenge is to prove that it works. The space software community historically is very conservative and risk-averse, and mostly for good reason. As Kubos (and hopefully others) get more flight heritage with Rust on the flight segment, it'll be a much easier sell.
That's the biggest obstacle I think. Someone will have to break the seal and establish that "Rust in Space" actually succeeds consistently, then larger "trad space" organizations will follow.