At my university, most of the students in our department didn't even realize there was a dashboard on Moodle because the default landing page was/is set to the news feed with numerous other blocks on. It's not ideal but I'm not in charge of their installation, whereas the course dashboard would be a lot more relevant to students in terms of accessing a course, finding resources, activities, etc.. I even had some instructors e-mail me (as a student) asking questions about Moodle since they knew my job was being a Moodle admin. Ironic!
Where I currently work, part of my job is to conduct orientation to all new students (as well as faculty, but this is not frequent), and ongoing support on campus. It's just another way of being the traffic cop and getting students from "login to learning" as you described it earlier. Like you, I was somewhat surprised that my rather small department actually had/has a dedicated position for this. When I worked in K-12, I tried for several years to get one added (I taught and managed the LMS) as it was extremely difficult to do both time wise. Moreover, I couldn't be available for help when I was teaching a full load of classes. They never had thought about this at all, and to some degree later on, just assumed it was relatively easy to do. I was put in a position where I wanted to either teach full time, or do ed-tech admin full time and the school chose the former over the latter. Turned into complete chaos after that but this thinking (or lack thereof) goes back well into the 1990's in the academic literature sadly.