Don Rosa's artistic technique

 So I saw this video of Rosa explicating his artistic technique, which I found very interesting.  Sure, I had had sort of a general idea of how he worked, but this makes it a lot more concrete.  It's a wonder he lasted as long as he did with such obsessive habits.  Of course, we all dig his style in any case, even if we probably wouldn't want every Disney artist to do it that way.  It makes him stand out, no question.  But is it the main factor in his enduring popularity?  It's an interesting thought experiment: what if his writing had been exactly the same, but his art had had a more fluid quality, like, eg, Daan Jippes or Marco Rota?  Would he still be packing conventions?

(And I didn't even realize until I wrote them down that I'd chosen artists to compare him to with whom he shares similar first and last names respectively.  Magic!)