Yeah, I'd seen this. I've not been a participant in the RISC OS community since the 90s, and clearly do not share the same enthusiasm some have for aspects of it.
I'm honestly of the view the wisest thing to do would be focus on making it play well with being emulated, right down to enabling enhancements when doing so (such as graphics acceleration), but then not being in that world it really is not my call at all.
There is a "moonshot" effort to redo the internals of RiscOS from RiscOS assembly.
https://www.riscosopen.org/news/articles/2025/03/28/moonshot...
https://www.riscosopen.org/content/documents/risc-os-moonsho...