Peace cricketplaya
I think the way it should have been said is that 'ashari and maturidi scholars recognise athaari 'aqeedah as part of the ahl-us-Sunnah, whereas the athaari do not recognise any aqeedah other than their own to qualify.
It actually makes sense. Athaari is the most condensed version of aqeedah. All the elements in this are present in other two, however not all the elements in the other two are shared by Athaari. Consequently, Athaari is last aqeedah to be formulated and hence has the least following amongst the people in numbers. However, due to a number of reasons people are accepting athaari aqeedah more readily, however there are now waves of revitalised traditional movements that is counter-balancing the wahabi movement. Not to say any are wrong, but you can see where my preferences lie.