No, I still don't understand your dissatisfaction, Canon won't make the receiver you covet, there is no reason for them too as if they did it would cannibalise sales of any new lower powered units, like the rumoured 450EX-RT.
I disagree - I understand the dissatisfaction just fine. People are also dissatisfied that the 5DIII is too expensive, that the 24-70/2.8L II doesn't have IS, and that leprechauns don't bring them pots of gold and supertele lenses.
The reality is that Canon is a business, and their obligation is to deliver value to their shareholders. It's absolutely correct that if Canon released such an RF receiver, it would drastically cut into sales of the new flash units - clearly, that's not in their financial interests. They want people to invest in their new systems, it means more revenue for them. My personal hypothesis is that such a receiver is already designed and ready to go, and Canon will produce/release it at some future time, when sales of the 600EX-RT and new 450EX-RT have slowed significantly. But maybe not... Personally, I'd like such a receiver - that would enable me to trigger a monolight/speedlite combo setup w/o resorrting to PWs. But I understand why Canon hasn't made one for me. While they're at it, an MT-24EX-RT would be great, too.