Our experience with many thousands of people does not make us concerned about this. Our method of teaching the squat accounts for any individual differences in hip anatomy, and over 10 years of holding seminars we have found about four (4) people who could not squat below parallel Saturday morning. These people were either very old or otherwise detrained to the extent that they were not strong enough to handle their bodyweight at depth. Quite simply, knees-out permits depth, and anyone who disagrees is welcome to attend our seminar to learn about this and see how it actually works for a very diverse group of people. But I understand that it's probably better to just continue writing about "the Scottish Hip" since T-Nation pays pretty well.
Now, if you'd like to pretend that some people can't get to correct squat depth -- and that you are one of these people -- in lieu of learning how to squat correctly, please proceed.