This one had `landuse=conservation` (which is relatively rarely used, but see https://wiki.openstreetmap.org/wiki/Tag:landuse%3Dconservation ) - that sometimes means "there is something else going on, beyond just being a nature reserve", or it might be "it's a tag left over from 15 years ago and doesn't add any other value".  You've added `blundary=protected_area` but without any protection information; without extra tags (see https://wiki.openstreetmap.org/wiki/Tag:boundary=protected%20area?uselang=en-GB ) that is basically uncomsumable.

With regard to "random outdated tags in RapId" if you are performing what is essentially an automated edit (whatever tool you are using) then you must follow https://wiki.openstreetmap.org/wiki/Automated_Edits_code_of_conduct and discuss - the UK forum https://community.openstreetmap.org/c/communities/uk/86 would be a great place to discuss.  Some of the changes suggested by iD / Rapid are sensible; some are questionable and some are utter garbage.
Best Regards,
Andy
