The gearbox is a major difference from other automotive applications. Gears are hard on oils in a different way than engines are. The clutch isn’t especially ‘hard’ on the oil unless you slip it a lot.
I have a little bit of analytical data on the condition of my NCX’s oil at 10k miles. It is in good condition and it is surprisingly clean (based on particle count). That said, you and I ride in very different climates, and we use different fluids (and I bet filters), so the fact that mine tests well at 10k doesn’t tell you about yours at 10 or 20 or however-many-thousand.
I note that you seem to have typed that you use Rotella T6 0w20 in your NCX. Are you certain that’s what you put in? I was not aware of a Rotella T6 0w20 product.