Yet it's royalty-free and good enough for Espressif (maker of ESP32) to move exclusively to the RISC V open-source instruction set architecture [1].

"Good enough ISA plus zero licensing cost" beats "perfect ISA plus royalties" in the embedded space.

Also, let's not forget that the reason the world is built on the von Neumann architecture is that it was made available for free.

[1] - https://www.eenewseurope.com/en/espressif-moves-exclusively-...