Pitch correction totally is a replacement for the specific skill of singing on key, though. While it's not the only skill that goes into singing, it's one that society used to admire in a good singer. Pitch correction also removes many small deviations in pitch that may have been appreciated by listeners as part of the artist's performance. Just because everyone's doing it now doesn't mean something subtle and real hasn't been lost.
Pitch correction totally is a replacement for the specific skill of singing on key, though. While it's not the only skill that goes into singing, it's one that society used to admire in a good singer. Pitch correction also removes many small deviations in pitch that may have been appreciated by listeners as part of the artist's performance. Just because everyone's doing it now doesn't mean something subtle and real hasn't been lost.