this is indeed a strange reason not to produce modular versions. dark energy is also a condensed collection of already available modules.
i think especially dark time would be a valuable addition to the range. the a155 is too big for most first-and-foremost-a-synth racks, but could be a lot handier than the a180/181/mixer/gate mixer combination that i tend to prefer (tha 1555's are in a rack of their own, but don't get taken to most gigs).
as for dark matter, well the reason i decided against basing a polysnth around four of the dark energy modules was the lack of a multimode filter, so important for poly sounds. one of the main problems in taking a modular poly on stage is the sheer number of cables, and i'm still toying with the idea of four energy modules. the addition of dark matter modules would be of great interest to me.
has the dark energy module perhaps not sold as well as hoped
i'm sure dieter knows what he's doing, but it seems a shame :)
stu