Why shouldn't a T admit that in a book?

T's have reactions. They are human. They don't tell you they think you are fat or ugly, but they may think it. Your chart probably says something about your weight and appearance.

It used to be thought that only young, intelligent people would be good clients for psychodynamic therapy because they would likely have the ability to self-assess and work through to gain the insight needed to heal. Young and intelligent is an assessment and the judgment of the T.

This is a business and the point is to keep the customer happy, which means a good therapeutic relationship. So a T would never tell you something like Yalom mentions in his book, to your face, but they sure as heck think it. They are human.

Negative countertransference exists as well. T's should evaluate it, but it exists for a reason.