You're suggesting that RISCOS Ltd.'s business model is to not put their product into new markets? No wonder we're in trouble. They need to *sell* their product. If they're unwilling to do the work themselves in order to sell more copies of their product, they should be trying to convince hardware manufacturers to use them. That second option will be tricky. There's no information at all about licensing costs and terms on their website.
If they're actually interested in selling more copies, perhaps they should provide a copy of the sources to the RPCemu team, in order to improve the emulator and sell more copies of the "Virtually Free".
However; think about the A9 Home and the Iyonix. The A9 Home still doesn't have a finished OS, and many of the reasons given by A6 for this is the time, difficulty and moving goalposts involved. Hardly an indicator of a good HAL. Then you have the Iyonix that ROL promised an OS for. Again, not a sausage. I think that points very strongly to it not being very good, no?