What is “SAS”? My experience is limited to three colleges, all very different schools. Just anecdotal. But I did a lot of reading at the time and found that the purpose of Disabilities Offices is partly to make sure curriculum and standards are maintained. The Americans with Disabilities Act makes reasonable accommodations a requirement, but case law is still being established. Again, accommodations cannot pose an administrative or financial burden or substantially change academic standards.
The human connection with deans, advisors and professors, supported by MD’s or other professionals, seemed more helpful but my direct experience is limited to those three schools.