Ugh, I think we all hate these, but they seem inevitable. I often feel like it's a bit of a pendulum--a session that seems really productive and intense in a good way is often followed by one that seems the opposite. I guess they can't all be that way. It's probably too difficult to sustain that level of connection every week.
My t occasionally has an agenda as well. It doesn't happen very often. One time she was very stuck on this idea of encouraging me to do something that would be way out of my comfort zone. Not a bad idea and I was cooperating to a degree by suggesting things that are out of my comfort zone that I'd actually like to do, like run a 5K, but she was suggesting stuff like skydiving and parasailing and all of this and we couldn't seem to meet in the middle at all. She wouldn't let it drop. At least your therapist isn't telling you to jump out of a plane