That professional is there to support the student as well as the faculty members, including providing guidance and answering questions about learning disabilities and accommodations. I would also like to address the issue of taking tests, since this was the primary focus of the article. Set the test time at a more convenient time for the student and faculty member. Other universities have done this, and developed ways to minimize cheating, such as having several different versions of a test, so even students taking a test at the same time in the same room are getting different tests. I also would like to address the idea of fairness to other students.
Appropriate accommodations are indeed fair.
Your description of some of the accommodations surprised me . If in fact these are some of your accommodations, I can see your concerns. Some of them are unfair. Testing is an opportunity to demonstrate knowledge that the student has mastered. Allowing students who are not prepared to claim disability as an excuse is not doing anyone a favor.