Pretty much this. I'm not criticizing a person for liking pegging/futa in femdom, I'm saying it's unoriginal. By that I mean, there's a lot of variety to BDSM, lots of kinks and fetishes, even different ways for a woman to "dominate" but generally most femdom games just copy what's been done before. For example, pretty much every femdom game I've played has had some varying degree of pegging or futa content, but you'd be hard-pressed to find any mummification content in those games.
This is why MGQ is the best femdom game I've ever played, there are at least 100 monster girl encounters, and they all bring a unique flavor, from personality, style of femdom, and kinks. I never thought a slime girl could be erotic before that game.