Back when the interview came out, Lindefann had an interesting take on it: "

Personally the mention of egocentricism made me think that it's less likely to be Richard because he was already that way inclined. I mean no offence to him, everyone has their flaws and there are reasons for his but he is known for having a larger than average ego."

In my humble opinion, this wasn't about a specific individual but systemic critcisms of the field which exists for example in Samuel Shem's Mount Misery based on his experiences in hospital starting out where he's taught "healthy narcissism".