I think Adobe is trying to smooth over what is, under the hood, a pretty complex subject.
But you're on the money about designers needing to know how the different representations of color relate to each other and how they relate to other models. Your question of what representation model the color wheel is using is a good example.
Production can't happen without design happening first.
We need tools that work in a clear and consistent way across the suite, as well as an understanding of how the tools relate to color perception and design principles.
A lot of color tools have been added to Adobe CC, and I love the suite.
But the color tools remain very procedural and, at times, lack cohesion. They confuse my students as much as help.
Inevitably, they use them for production but not design (except the students who just go "theme shopping" : )
I'd like to see color tools that work the way we really understand color and how we design with it:
logical, intuitive, and expressive of both design and color perception principles.
And, as you say, clear and consistent across the suite.
It's a major area of potential development for Adobe and can help Creative Suite continue to set itself apart.
Thanks for your kind comments and additional thoughts
I also hope the color themes and libraries in Adobe CC will somehow become dominant and persistent. For now, even the implementation isn't bug free and the nomenclature is not consistent, yet. But we're in another transitional state here. Time will tell...
Note: the RGB colors in the triangle in the Apple color wheel above are correctly spread over 120 degrees parts. The overlay of black lines is not correct, though. It should have shown the radials of a perfect triangle like below:
And on another and actually quite concluding note: when designers talk about the esthetical harmony between colors, they refer to these kinds of color wheels, with a completely different way of defining and partitioning the "base" colors: