Sorry, perhaps I muddled the issue. The issue is not that it's removed from Amazon, but that's it's an exact duplicate. Or are you saying we keep duplicates in Goodreads if there are or have been duplicates/moved ASINs on Amazon?
A different ASIN is like a different ISBN - it means a different edition. We certainly do keep multiple editions with different ASINs. There are cases with 100s of different ASINs of an exact duplicate, and we keep them all.
The former has been removed from Amazon and the latter is the current ASIN for that edition. (Penguin 2022 Audible edition with that exact cover art)