OK, so many of those involved with RISC OS use poor logos and design. I'd largely agree with that, and I also agree thet the "RISC/OS ltd" logo is bad. However, I don't make the leap from that to the idea that we should abandon the cross-platform branding that has built up following a lot of work.
Getting to the point that we have a single logo (the cogwheel) which is flexible enough to be incorporated into other designs took a fair bit of effort. If any one RISC OS company now goes out and commissions a new 'universal logo', it will be ignored by the other players. We already have a consesus: why can't we build on it?
There's nothing to stop ROL, Castle, ROOL and so on commissioning new logos from these £200 design houses that incorporate the cog. Surely that would solve your problem, too?