Problem
The one problem I see with RISC-V is, ironically, its openness. It allows unfriendly nations which are on the sanctions list to keep up with Western technology simply by implementing homegrown RISC-V parts. If the West moves towards RISC-V nations like China, Russia and even North Korea will benefit and this may not be something that's in our interest.
Maybe I'm corresponding a weird angle, but has anyone even thought about this?