Its supposed to be. If its not then its a bug.
Also I would like to defend Natdex AG. I think its way more fun than a Ubers format would ever be. AG is simply has more to offer in terms of team building opportunities. Also no pokemon (like Mega Salamence) is entitled to be viable in a format.
By the way when AG moves to Galar Dex. Can we rename the section to "National Dex OMs"? It would be home to every natdex meta not named OU. I think it would great to clean the forum a little since its somewhat difficult to navigate when finding UU resources.