Complete absence of Girl's Frontline costume character tags

Is there any specific reason why there is a complete absence of character tags for GFL costumes?

Azur Lane has unique name for every costume as does GFL, yet there are no tags for the latter.

We could easily have tag for lets say, Tokarev's Griffon Dancer costume: Tokarev_(Griffon_Dancer)_(Girls Frontline) , like so.

For a random comparasion:
Takao (Beach Rhapsody) (Azur Lane)
Tokarev (Griffon Dancer) (Girls Frontline)

Closest tag i have seen for anything costume related for GFL is one blanket tag for one specific costume set, that being Labyrinth of The Dark.

So tl;dr, has there been some concious decision to not have these tagged, or has just nobody happened to not think about/discuss about/do -it?

Most likely the latter, I don't think all the Azur Lane costumes are fully tagged yet even.

For what it's worth, the costumes should be tagged with alternate_costume. I would support it if the individual costumes/sets were tagged though.