The Novus Ordo is not only valid.
The Novus Ordo is also acceptable.
Those two quite different words - "valid" and "acceptable" - have quite different points of reference don't they? And as a consequence, eschewing the latter and only talking of the former leads to a sort of heretical maligning of the mass.
God regards it as acceptable. He makes it acceptable in the exact same way that He makes the EF acceptable.
It is minimalist to say that the Novus Ordo is valid and not talk about how it is acceptable.