While I don't quite fancy his latest stuff, I owe Clapton a huge debt for inducting me into the blues, but that's not the point of this post.
I hope to go some way towards correcting some misconceptions. As guitarists we should always seek to further our craft by listening to those whom we aspire to play like, and intently studying their technique, phrasing etc. As our ears improve we get better at hearing and picking out solos and licks, and learn how to focus on the crucial guitar parts. However, in our never-ending quest for musical enlightenment, it is sometimes necessary to take a step back and re-evaluate.
Blues has its origins as a vocal music form, and rightfully so. A lot of the old masters were not outstanding guitar players (Muddy Water, Howling Wolf, John Lee Hooker etc) but they crafted their bands' (or their own) instrumentation to fit around their voices, allowing each player their moment to shine but ultimately following the vocal lead and backing them up. MW and HW were also tough taskmasters, quick to reprimand any player who stepped out of line and overplayed to the detriment of the whole sound of the band.
Blues today has become a lot more guitar-centered, and that's not necessarily a bad thing, but to forsake the singing and not listen to what the rest of the band is doing is missing the forest for the trees. Learning the licks and solos without understanding the context of the music is like memorising the dictionary without learning the language.
To understand what I mean, just put on BB King's "3 O'Clock Blues", put down your guitar, close your eyes and concentrate on listening. Repeat with different song as often as necessary. Wash it down with a beverage of your choice.