Bridging the Gap: The Mainstream Protocol Vs. Functional Health for ASD

What does the term "Functional Health" even mean, and how does this approach differ from the mainstream perspective when it comes to Autism Spectrum Disorder?

https://video.wixstatic.com/video/3eeca2_ec06263ad99947c78ce69db50c2dec9f/360p/mp4/file.mp4