Other way around I think. Your link is an old version of the paper. The one on eprint was just updated today with a version of the paper that adds the "destroys RSA" line and removes the "work in progress" line (put it in the wayback machine to see the version that was there yesterday without the claim of destroying RSA)
https://eprint.iacr.org/eprint-bin/getfile.pl?entry=2021/232...
The previous (reportedly wrongly uploaded) version is from 12/5/2019, 9:10:13 AM created with pdfeTeX-1.30.4.
https://eprint.iacr.org/eprint-bin/getfile.pl?entry=2021/232...
The university website version is from 3/5/2020, 12:00:19 PM created with pdfTeX-1.40.15.
These dates & times are MM/DD/YYYY & CET.
A co-editor of the Cryptology ePrint Archive confirmed the submission on twitter:
https://twitter.com/Leptan/status/1367103240228261894