I dunno. I figure, since Eden had all those little holographic projectors, Macross city would logically have tons more. But yeah... I understand your point. You pretty much have to suspend your disbelief, and the same lot who are still clinging onto the hope that Macross 7 will just go away and disappear will probably be disappointed with Kawamori's decision to include this mysticism into the Macross universe.
It's kinda like George Lucas how he made all these great movies, then he had kids, and his movies got all weird and cutesy, and arguably, crappier. Kawamori obviously had some crazy revelation with all this Earth Love stuff, what with Arjuna and the upcoming Aquerious and he fully intends to incorporate it, for better or for worse, into Macross.