18. The absence of either of the following shall constitute a rebuttable presumption that a development transfer ordinance is no longer reasonable:
a. plan endorsement pursuant to P.L.1985, c.398 (C.52:18A-196 et seq.) or regulations adopted pursuant thereto is no longer in effect for that municipality; or
b. a sufficient percentage of the development potential has not been transferred in that municipality as provided in section 20 of P.L.2004, c.2 (C.40:55D-156).
If the ordinance of a municipality that is a participant of a joint program pursuant to section 3 of P.L.2004, c.2 (C.40:55D-139) is presumed to be no longer reasonable pursuant to this section, then the ordinances of all participating municipalities also shall be presumed to be no longer reasonable.