Meh, I take the Macross route and accept that SNW's continuity is only valid withing SNW. Just as TOS's is only valid within TOS. And so on. Only on TNG/DS9 was there any real effort to maintain continuity across both shows.
Lots of fans (including, probably, SNW's showrunners - though I don't leave out the possibility it all came from marketing) like to think Trek is all one big story, but the reality is the different shows fit into a single continuity as well as (or rather, as poorly as) Asimov's R. Danieel novels, Empire of Man novels, and Foundation novels all fit into one giant history of the future, no matter how much he tried to cram them together when Pournelle made that sort of thing popular.
If trying to find rationalisations for how this all works is fun for you, have at. But arguing about it? All that accomplishes is reinforcing the conflict pathways in your brain, making life less fun for you and everyone around you. Some times this forum is awesome, full of neat ideas and wonderful trivia.
And other times...