The credentialism is overwhelmingly about classism, so if you make university free, that part becomes a totally different beast. That BSc is no longer a sign that you come from wealth (or are willing to indenture yourself to employers to LARP it), so it becomes less of an issue.
It also addresses the "one or two classes" issue.
The scheduling thing can be fixed by restructuring work. There's no good reason work needs to take up a contiguous block of time each day nor why it needs to take up 1/2 of the waking day.