Yeah, there's no discussion on this blog post of what a lot of people are doing in writing project-specific linters, static analysis passes, code generators and so on that just ensure higher code quality which to me is more bleeding edge when it comes to actually helping. There's also no mention of the fact QEMU is tightly bound to other C based projects like libvirt and KVM and having developers be able to switch back and forth is extraordinarily useful. It wouldn't just be replacing QEMU but also the ecosystem around QEMU. It's not like QEMU is the application at the end of a dependency chain, it's in the middle for a lot of users.