I mean this game is like any other gacha game.

Gacha game tend to have alternate version of same character for example FGO-based Saber,Alternate Dark Saber,Summer Saber.

And again never compare gameplay,ninja skill kit to manga/anime lore

Powercreep tends to happen in gacha game,where new release unit will overpower old unit its inevitable.

Really if i were you,i wont care such trivial problem though.(Sorry if the sentence seems to be offensive)

Why are we argue about ninja originate from konoha or not -_-.This is a game it doesnt have to follow anime/manga completely,It is up to devs they can make Hidan a konoha if they wanted to.