>>58166812
Bug and Dragon type do have unique stuff in them that hasn't been been developed yet.
Their special moves allude to it.
Bug has signal beam, which means if they tune into it, bug type could be computer bug or general weird type. They just haven't tapped into that.
And Dragon type is essentially sheer primal god energy. Not Christian god, but Eastern, Chinese, Confucius, family honor, type dragon god energy.
Also, Fairy typing is also god energy. Not Christian, or Chinese god energy. More... japanese, Naruto, Tsukuyomi, moon rabbit god, foooooolish samurai, type god energy.
Christian God energy in pokemon seems to be typeless energy. Arceus, Regigigas and whatever else they'll tap into next.