Don't always agree with your strongly stated positions but they are generally well written and thought provoking. Often beneficial to look at a topic from a differing point of view.
Great point about technical proficiency vs musical sensibility. Wonder how much of that musicality originated with Mr. Starkey himself or was the influence of Geoge Martin or even McCartney. I do tend to think of him more as a percussionist/accompanist than straight ahead rock drummer. W/respect to guitar your mention of Jeff Beck earlier fits this topic very well as he often displays a nice blend of technical proficiency and musicality.
Had figured your position about the original vs Who cover of Summertime Blues would differ from mine. :-) Coming of age at that time, Who Sell Out (Our Love and Rael personal favorite tracks) and Live at Leeds represent the best of their music to me. A golden time for various reason. Do like that stuff better than Tommy and way way way more than "Who's Next". They got kind of boring.
Still not sure the merits of your position on Hendrix. Probably truer of him live than in the studio. As a song-writer he certainly wasn't always guilty of a lack of poetry and emotion. I'd say the same extends to a good deal of his studio playing as well.
Later.