We know what RTSes are. We grouped MMORPGs, RTSes, even Racing (Trackmania), Club Penguin (Till it found a proper home), and similar games up in the MMORPG section, because we're not gonna make a whole category (which takes up extra vertical space) for that isn't even popular yet, when they are pretty similar (excluding Trackmania).
If they become popular, we'll properly separate them, till then they stay grouped.