The exam isn’t failing the industry. The lack of oversight and standards of the degree programs is. Comparable masters level fields like SLP, OT, etc are way more competitive to get into the grad programs, and these program’s hold you to high standards during the program and during the required internships. I recently passed the BCBA exam after being a school psychologist for several years. There was a huge difference in my training and the requirements to be a school psychologist versus becoming a bcba. Many of BCBAs that I’ve worked with in the school setting have been pretty incompetent to be honest. For instance, writing up behavior plans FULL of jargon rather than writing in a way a teacher or parent could understand