Despite my background in color science, I find RGB more intuitive. With HSV I have to remember the chirality of hue and it's zero point, and when changing hue I find it difficult to reason about saturation. In practice this means I must "nudge and judge" with both systems. With RGB I can always make progress. With HSV I guess hue wrong about half the time. I could probably improve this.
To be fair, I'm also colorblind. That's probably relevant.
Anyway, I'd say the answer to both your questions is: "sometimes"
All you're arguing is that it's easier to memorize primary and simple secondary colors in RGB. No question, it is. Once you've got one of those detent colors locked in, how do you vary it? What does it mean to bring up i% of the first channel, j% of the second, and k% of the third? That's the problem HSV solves.
To be fair, I'm also colorblind. That's probably relevant.
Anyway, I'd say the answer to both your questions is: "sometimes"