Seems like a pretty good analysis. I've been using Dvorak for 20+ years also. The keyboard shortcuts thing is annoying, though I hadn't heard about the wrist strain they cause. I didn't see this discussed, but I actually find the fact that Colemak shares more keys with QWERTY to be a problem for learning if you already know QWERTY (even though that might be the biggest strength). Dvorak only shares the "A" and "M" with QWERTY, but typing those letters always confused my brain the most when learning, and sometimes I'd fall right back into QWERTY in a really frustrating way.

I switched to Dvorak because of wrist strain/RSI issues. I was in pretty serious wrist pain and now I rarely have any. It probably wouldn't have been worth it otherwise, but that was a huge benefit to me. I'm not sure if other things would've helped since I didn't try a lot of other approaches first.