Well it's mostly just a notion right now and I'm certainly no mathematician or expert, and I feel like game theory is probably much more broad than what I understand it to be, but what I thought of it was that - since it seems to want to transcend simply being a game - its incentives, motivators, things that influence the strategy involved, etc. would necessarily be broader and more abstract than what typically constitutes a game. This might require new language to fully describe.

In general I feel like some of the most thought provoking big-picture ideas for games come from critical thinkers who aren't game designers, as the outside perspective naturally sidesteps the tropes that would likely be starting points for designers. This outsider analysis thing is just making me think of the video where Werner Herzog analyzes a Kanye West music video now, hahaha