The NEW URL -- not an update request but a new review request -- is waiting review in the second category you mentioned.
So far as I can tell from the logs, you've never tried to update the address.
Speculating for a bit: it's conceivable that multiple submittals overwrote the update request. And I'd guess that the OLD URL stopped working and was therefore removed. (If the old URL had instead been redirected to a new listable site, we'd typically have updated the link on our own initiative. If there had been an update request, we could have also checked it at the same time.)
But I can't check any further without knowing the old URL ... and it really doesn't matter, since we apparently all agree it isn't and oughtn't to be listed.
You're welcome to bump the thread in six months or more, for a recheck of the submittal status on the new URL.