Ling Ling agrees.Could have actually been nice for those very few folks both cursed and blessed with perfect pitch... they might find recordings that got a little off in pitch somehow a bit annoying and difficult to enjoy, but you would have wanted a few baseline concert pitch reference points—it can vary by orchestra, etc., IIRC. Could have helped some extremely talented musicians to enjoy recorded music.
https://en.wikipedia.org/wiki/Absolute_pitch
https://en.wikipedia.org/wiki/Concert_pitch