I haven't seen any good science that would indicate a need for dimpled membrane rather than 10-mil poly as a capillary break when retrofitting a slab. The wicking potential of either poly or XPS is extremely small, and no-wicking/drying toward the basement==no mineral depletion of the concrete. The slab itself doesn't "need to dry", and encouraging moisture migration through the slab only degrades it. The additional benefit of having an air-space between the extremely low-permeance non-wicking poly sheeting and the concrete is academic.
Dimpled membranes may be useful under ceramic or wood flooring with NO foam with damp slab, where a rip in a poly sheet might allow some wicking of moisture into the ceramic, staining it. But with an inch of (no-wicking low-permeance) XPS that's not a likely scenario.
If the water table is occasionally high and you regularly get wet spots or efflorescence on the slab, use a concrete sealer on it before the poly + foam.