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It is funny that we are on an RTS site and the genre doesn't even show up in research any longer.
I identify with strategic and immersive gaming mostly when I checked the example titles and genres. Which is probably why I enjoy single player campaigns in strategy titles...
I found the same to be true. When I read/look for research articles, most of the data are from CS and LoL, sometimes DotA and some others. I think there are two reasons for it: First, the most prominent esports-titles are also the ones where data are available on mass and second, they are team games--that's just much more attractive for most researchers.