Beyond the discussion of whether the owners of these services understand Tor or not, it's a problem that the address is added to public lists, especially for non-exit relays.
The addresses have to be public, because other users need to be able to connect to them. Public listing of bridge nodes is somewhat limited at the cost of making access harder for honest users and the solution is only shifting the problem a bit.
My question is how long does it take for a relay to disappear ?
Aside from what people have alrady said before me, the problem is usually not on Tor Metrics side. There is a third player here: companies that offer blocklists. It’s totally up to them when they think the IP address is “clean”. It may be from a day to never, depending on how much they care about quality of the lists they push to their customers. From my experience and hearsay a day to a week is a typical time for most cases.
You may use some anonimizing solutions (VPS) for the time being to hide your identity, if accessing those services is urgent.