Kirksman Teo, a weightlifter in Malaysia, has a website called LiftHard. On the site, he talks about his experiences in training and coaching, and he's not shy about sharing his opinions. I don't really know much about him, however I get the feeling that he is relatively new to training and an avid student.
On his site, I found the following two posts:
There's no doubt that there has been (and still exists) a quasi-paranoia when it comes to knee position in the squat, and externally rotating the hips to an extreme to protect the knees will cause new issues. I don't really have much more to say on the matter except that there is a balance to be struck on upper body, hip, knee, and ankle positions while squatting. That balance is going to change depending on the individual, the load, and the task.