I don't have a child in speech therapy, but when I was a TA in an infant school, a child I worked with (probably Yr1 or 2 - can't remembe) did have speech problems, and a therapist came into school to work with different children.
So that I knew how to support this child in class, I asked to sit-in on the therapy session. To my surprise, the child was given a series of four cards, that had to be sequenced into the correct order. One set (that I could hardly do myself, because I didn't know what the man in a sort of 'page boy' suit was) turned out to be a pizza delivery service!
Another set was a bird building its nest, and laying eggs etc. Now for a 6 year old, that didn't have much to do with speech therapy in my view, and entirely relied on the child having some knowledge of natural history, and nest building!
So I'm afraid this speech therapist, who I had assume was a real expert in her field, went right down in my estimation.
So, are you finding this talking about the different rooms, rather strange and unexpected? It seems therapists might be more concerned with the MENTAL processes, rather than the VOCAL aspects of the condition.
(Sorry - that's probably no help to you at all; but do have a Happy Christmas!)