There are times when I have felt this, but I can't recall a time when it wasn't useful for me to think about the impact I may have on others, especially when I am unkind or judgmental or too extreme in my thinking.

Sometimes what has felt like a defense of the other person is not so much a defense but a more accurate and nuanced way of looking like the situation. Understanding why someone might have __ is helpful to my own processing and tendency to see things as more negative than they really are. It can feel like a defense of the other person to encourage me to focus on the entire situation, not just on my perspective. And I'm not really fond of people just shining me on and agreeing with me because they are afraid to or because they find me intimidating. There are therapists like that who will just do and say whatever you demand, but I'm not in therapy to get someone else to agree with me. Validation can be easily overdone and can cross a line into narcissism. (I'm not saying this is what is going on).

I think it depends whether a T being able to see a situation beyond your thinking of it and being skilled at communicating that without saying "you're wrong!" or something else judgmental is helpful to you or not. Maybe you're not in therapy to learn how you may distort your perceptions of the world in ways that don't serve you, or maybe you don't want to be challenged. But that's what this sounds like to me, but I think the best way to figure it out is to have a conversation with your t about how you saw this and why it bothered you.