My daughter is 7, non-speaking, doesn't go to a regular school yet (thanks to COVID) and takes online sessions for Speech Therapy, OPT and Special Ed. So all we have is progress reports from her therapists. "Excessive Demand" is something thats incomprehensible for us parents at this stage cos the files invariably go to a central team for multiple reviews. We just need to ensure we provide the latest reports that would explain the "progress" and hope things move forward.
Personally, I absolutely hate associating ASD with the term "Excessive Demand" in today's day and age. But it is what it is!