@tsto thank you very much for this! I found out that the address in question is indeed fine and appears verified in the following two:

https://www.eosauthority.com/

https://eoscountdown.com/

but not in

https://eosio.github.io/genesis/tools/account-name/index.html

So @dan apparently there must be something wrong with the latter so probably best to either fix it or remove it because this may cause people to freak out!