They are indispensable at various times, and for different persons. They are necessary while helpful.
There is an orderly progression, from Vaibhasika realism, through Sautrantika subtle realism, and Madhyamika self-emptiness, to the realization of Maha Madhyamika other-emptiness.
If we grasp at these stages as “The Truth”, we lose the view, and become attached to a blind belief.
tadyatha om gate gate paragate parasamgate bodhi svaha
OM, it is thus: Gone, gone, gone beyond, gone perfectly beyond, to enlightenment!