I don't really know, but it kind of makes sense, right? If avoidants are not as able to form attachments, tend to be more hedonistic, spend a lot more time in their own heads, have less emotional intelligence etc, then it wouldn't be surprising if they had more narcissist traits. I'm not saying they have NPD, just that they might have more characteristics that are considered to be narcissistic. I also wonder how empathy fits into all of this, and how much empathy they are able to feel for others.