I could see it as a legitimate use case-- in a real business environment, even in a software-centric organization, you might have a need for light-duty database stuff where the UI is 90% of the value, and Access could give you that while trying to tape together an interface atop SQLite or MySQL is a lot of extra effort.
The prof even had an appendix for "if you want to do this on a CLI or with MariaDB..." and had links to other DBMS alternatives. I used DBeaver with Maria and got an A in the class.
But to the parent poster's point -- as someone who has done a lot of hiring on the entry-to-mid level there is a NOTABLE difference in quality from the brick-and-mortar schools vs. online, even if they didn't have a STEM degree (e.g. an English major who turned Network Engineer). I suspect it's more about selection bias and some limited competing with peers.