[addled]

I agree with you in principal, but offer a small counterexample:

I was a student worker at a university with a documentation / training dept. We maintained a wiki used by faculty and staff. We encouraged adoption with other groups, and built out a library of articles on tech resources, like how to use screen recording software to make and edit videos for the classroom.

We also had dedicated hours in one of the computer labs, where one of us would be present to help anyone with questions on using Blackboard, wiki, etc.

So in some cases they are trying, but to your original point, we only had 3-4 people, mostly part time trying to provide training and documentation. I think we made a difference, but there was a lot more that could be done we didn't have resources for.