leisure=pitch + sport=beachvolleyball without surface=sand is not outdated but incomplete

[Nakaner]

leisure=pitch + sport=beachvolleyball without surface=sand is reported as "outdated". I would not call it outdated but "incomplete".

Using "is lacking additional tag(s)" or "is incomplete" would be better. If a mapper decides to add tartan as surface, this can be used by other mappers as an indicator that the changes by that person are worth to be looked at.