I don't dispute the suspicion that it has dumbed things down to a large extent, I'd agree with that but equally, that is not the fault of the medium.
Hmmm, I'm not so sure on this.
Fault of the medium? Maybe that's not the right word.
Result of the medium? I think for sure.
I don't think you can deny the fact that many, many of the artists today would never have made it to a pro recording studio in the days before multi-tracking, editing, pitch correction, etc. They would have auditioned for an A&R rep (and/or he/she would have seen them live or something), and the A&R rep would have thought, "This guy (these guys) suck. They can't sing in tune, they can't play ... they just suck."
Nowadays though, bands that would otherwise suck ass can produce a quantized, pitch-perfect pop gem only as the result of a computer that would take them years of practice and refinement on their instruments in a "live-only" world.
Don't get me wrong. I agree with most of what you said: the simple fact that people were looking for ways around the limitations of live recording is evidence to something. But saying that the advances in technology is not at fault (whether right or wrong) ... I don't see what else could be at fault?
In the one-take days, musicians spent more time practicing and refining their craft (or producers looked harder for those blessed with incredible natural ability) so that they possessed the ability to record the only way they knew how: play and sing the song all the way through very well. Nowadays, people know they don't have to do that. So they don't feel the need to do the work it takes to do that.
It's tough to say because, while I agree with you that, when multi-tracking was first invented, most bands could pull it off in one take, I certainly don't agree that it's still the case today. And I'm not getting into the additional creativity of using the studio as an instrument. That's apples and oranges. I'm simply comparing a band's ability to record certain instruments/vocals live in the one-take days verses a band's ability to record those same instruments/vocals live nowadays.
Of course there are still talented and skilled musicians out there today that can pull a lot of stuff off in one take, but there are many more in the industry that cannot. And if that's not the fault of technological advances, then who/what is at fault?