Maybe, but Espressif already has their own RISC-V chip (ESP32-C), which is perfectly compatible with their development platform (IDF), with a Thread-compatible model (ESP32-H2) coming next year.

Both cheap and profiting from the big community.

I'll buy an Ox64 (the ability to run Linux interested me), but Espressif isn't giving up easily. A few years ago, when Espressif was in more of a niche, it would've been an advantage to not have to use their weird Xtensa instruction set. But nowadays most toolchains have apparently added support and it's not a big problem anymore.