^Yes, I think that is correct. It's a pyramid. ~85% easy/moderate, 15% hard. Though I don't get as much "easy" as I probably should. But maybe no one does. A group ride might be 2' easy, 30' moderate, 2 hours moderately hard (zone 3), 1 hour hard (substhreshold & LT), and 5' anaerobic. That's way too focused on hard, so during the week I go easy/moderate to fill out the pyramid a bit. I probably still don't get as much base as I should. The modern "time-crunched" and HIIT training styles are focused mostly on the high end, because that's the most bang./hr. But the best results still come from riding a lot.

I was saying that you'd get overtrained if going hard was all you did 10 hours/week. Most folks would be cooked in 2 weeks. But go moderate for 8 and hard for 2 and no problem.