Ah....

He should have indeed gotten back to you... Maybe something got misplaced somewhere along the way... Did he get back to your son's teacher do you know?

Behaviourists don't to therapy (in the traditional sense) of trying to get people to talk about their needs and / or their feelings... what they do do is train new behaviours.

The first thing they do is observe the problematic behaviours. Then they try and figure out what behaviour typically follows (attention from teacher, not having to sit on the mat, whatever) then they try to figure out what triggers there are (being asked to follow an instruction, what kind of instruction? etc)

The idea is to work out what the function of the problematic behaviours are (what are they doing for your son? what does he get out of them?)

The next step should indeed be the person having a chat to you about their observations because you might be able to notice patterns too... And to figure the function...

Then it is about figuring out alternative ways of getting the need (function) met that isn't so problematic and gradually shaping them.

Sounds like the person who came and observed was precisely what I had in mind :-)

Yeah, chase them up.