These things asked for are highly time consuming. A few years ago, I was working on a project I was very passionate about creating a MOOC at my college for students who scored low on the placement test and wanted some free remediation. I came to find out that by this same rule I also had to closed caption all my videos... basically transcribe them by audio and hand. This was probably going to take me somewhere near 100 hours to which end I nearly gave up on the project even after having recorded all the videos. Our school right around that time bought a license to a dictation software for a few thousand dollars that basically did it for us.
Overall, this is a good thing in giving everyone equal treatment even if it is very expensive accommodations to make for the few. But eventually, we'll probably view this like buildings requiring ramps/elevators for wheelchair access now. I can imagine that a while back, this was thought of as an outrageous and expensive accommodation for few people, but now it's a very basic assumption.
Related to the story itself, I'm curious if the National Association of the Deaf made complaints originally to UC Berkeley that went ignored or if this just came on them out of the blue. I'm nearly certain that UC already has a disability services office that is already very experienced in dealing with this kind of stuff (every college does). To the point that if they did ignore any such requests, then the behavior of ignoring such requests would probably qualify, to me, as bordering on legit discrimination. Yeah, this stuff is expensive, but everybody's doing it already (including probably Berkeley themselves). An institution like Berkeley especially should be ahead of the curve, not behind it, on an issue like this. If the National Association of the Deaf just brought up issue to the DoJ with no previous complains, then that's really annoying of them.