Utter nonsense. You find a way to make your machine work the way you want it to.
A chisel doesn't make the best screwdriver.
Any OS is designed to provide functions that work in a certain way. Sometimes, there is flexibility to allow variation -- this is why there are preferences and settings. And sometimes third-party software can help.
But sometimes there isn't. For instance, the common complain of Windows switchers that <return> should open a file in the Finder.
But all UI controls, ultimately, have to be learnt. None of them are truly "intuitive", except in being similar to other ones we've used before. The things that you demand your computer to do now are things that you have learnt from elsewhere -- other OSes or versions. So why no more learning?
Generally, OS X does provide methods of doing what you want reasonably efficiently. (There are a few exceptions!) They may be different from what has been learned previously, but the simplest way of proceeding is to learn the methods available, rather than trying to force the machine to work against its nature.
However, Apple is testing the boundaries by introducing new paradigms like Auto-Save, Resume, Mission Control, etc. You can send feedback to Apple, of course, but if the function isn't there, and there is no third-party software, then you just have to get used to it. Like all things, once you've done it a few times, it will become second-nature.
If people are not prepared to learn and adapt, then they're not using their computer to its fullest capabilities. (Their squishy grey computer, not the one on their desk.)
Personally, I find that there are many different ways to switch windows in OS X, and I can't say that any of them are particularly tiresome or ineffective.
