So, the question is, which version is more "true" to the artists' original recordings: one where the melody and harmonies are retained, or one where the "life" of the performance comes through? Even as a (hobby) musician, I'm actually a bit torn. There are some artists where I know I've missed their prime. I'd love to see them still performing, but just know that it won't be as high-quality of performance as maybe 20 years ago.
Art and Paul's aged, what...30 years since that earlier one? If the choice is "no performance" or "pitch-corrected performance", I might well still want to see them perform even with crutches.
I think part of problem is that it was released as a recording/video. When you're at a live performance, it's much less obvious due to the sheer volume, and to the acoustics of the venue. It's a bit how like guitarists anguish over things like pickup magnet types, wire gauges, vacccum tube brands, 9v battery vs a AC/DC power supply, and sitting at their computer flipping back and forth with high-end headphones or monitors in a sterile environment....but then you give someone like Satriani a $199 kit guitar with a shitty generic amp, and he still sounds like Satriani when recorded with a phone.
I remember one time I saw Rob Zombie performing on David Letterman, and it was TERRIBLE. Because you could hear the vocals so perfectly because it was a "direct" track, you could hear how out-of-breath he was, and how he sometimes skipped the last syllable of a phrase...but a week later, I saw him live, and in the context of the live show, you were immune to those little subtleties...but what you WOULD hear, is if he was terribly off-pitch. When you think about what makes a "bad" vocal, it's rarely about timber or vocal technique...it's usually about pitch.
I do think I still side with the "purity of the performance" side, so without pitch correction, but I can't fault someone too much for leaning on it. It's a bit like ABS or power steering, I guess, in some ways...but then again it still has to be subtle. You still need a base level of skill to make an auto-tuned vocal not sound like it's a dial-up modem connecting. Once you hear that "seeking" or "bouncing" like you hear with purposefully auto-tuned stuff, like T-Pain, then you're no longer simply using it as an aid, but is itself then the whole performance.
My first PC I bought myself was an AMD K6-2 500, before that I had a Pentium I 60 MHz with I believe 16 MB RAM and a 640 MB HDD that I got from my father as the Pentium III 500 MHz was top of the line...
