No I do not think a therapist would ever purposefully chose to disrupt the therapeutic relationship just to "shake things up". I am of the opinion that would be close to malpractice in fact.

We can and should expect our therapists to challenge us, but never ever intentionally behave like an ***. That is the equivalent of poking the client to see if they will jump.

With every challenge, or every defense that is laid bare, it is incumbent on the therapist to help the client develop and new and effective one.

If I thought my therapist ever did this, or even thought creating a rupture was a valid and purposeful technique, I would fire him on the spot.