Paraphrased/summarized, we focus on the mainline series of games that have inter-connectivity and, the ability to play with each other in battles over an internet connection. This is why something like Legends ZA (no pvp) or Pokemon BDSP (no inter-connectivity) were not considered "the main current generation". Nothing has been shown about Champions that would imply it is within the mainline series of games or that it is as equal (or superior in ORAS's case) next stage to SV in the way that HGSS or ORAS were to BW or XY. Champions isn't a remake of a previous game that is adding something (be it HGSS move tutors, ORAS new 'mons/megas, whatever) to the generation - everything shown so far appears to just be a "here's a novel new way to play online matches, now on your phone" as far as I can tell.