I'm not sure I like the wording your T used. It does imply 'blame' and seems very clinical in nature.

My T doesn't use the word countertransference, however, he has mentioned how he feels about things I've assumed about him (like he's trying to get rid of me or he doesn't care about me). He's talked briefly about some of those feelings.

For me, it helps a great deal. How I make him feel both good and bad is important to me and my progress. He focuses more on the good of course.