You could not be more wrong. They're still very easy to use, and way easier and less confusing than Android. The gestures for swiping between full screen apps are the same on the mac and iPad. They're both 4 fingers. And if you can fit 4 fingers on a magic mouse, I commend you because it's so small!
I really don't see how they're getting harder to use. And I help people with it all the time, and what I hear all the time is, "wow that actually makes sense." It's the logical way.
So, I completely disagree and I'd be willing to say the majority would also agree.