^Sure, but they've also included Species 8472 as a major player, introduced the aliens from ENT: "Silent Enemy" (and given them a name and language, which makes no sense for a species defined by their absolute silence), etc. They're drawing on elements from every part of the franchise, because they have a large, immersive universe to build and they need material. And naturally they draw heavily on TOS because it and TNG are the most enduringly popular parts of the franchise.
But their priority from a story standpoint is to foment conflict and war, because they've chosen to make this a fighting game. So the way they use
the species and governments they introduce is about generating combat scenarios. Whereas when the novels use those same species or governments, we have the option to develop them in other ways.