Interesting. I wonder if they have some kind of automated system to reupload images after an infringement takedown, because I recall checking the ASIN maybe 20 minutes after I received that email and it was still there. The infringer did not seem very sophisticated at all so I'm not quite convinced, but that is certainly a possibility I had not considered.
Also, I grabbed the thread from the OP in case you were interested: https://imgur.com/a/L1gFAqy