Yes, business.
This wasn't business. There were no profits to divert into making better subtitles.
And the ratio of effort between making a recording versus making a recording and then manually subtitling it is completely out of whack compared to the ratio you have in full produced works. There's a reasonable level of accommodation, and the reasonable level is below a doubling in costs.
I'm someone that would significantly raise the subtitling requirements on youtube if I could. But in this case I just don't feel it.
I shouldn't have used the term "business," because that made people think that I was referring more to economics instead of "doing the right thing even when the right thing is slightly more expensive." Look, UC Berkeley is a public university and they have to adhere to certain rules around disabilities and accommodations. It's well established law at this point; the ADA is 35 years old. They should know this, and they should be able to comply. To take down the videos suggests laziness and ignorance on Berkeley's part.