Chase chose The Club to build and operate their lounges. The Club is owned by Collinson, the same company that owns Priority Pass. There are conflicting interests in this arrangement, and the only way I see Priority Pass access disappearing is if Chase gets another lounge operator to buy out Collinson.
or Chase dangles the one free visit as a marketing opportunity for new CSR applications. Airport Dimensions owned by Collinson has operated lounges for Virgin Atlantic and Qatar.