You're all missing the point slightly
I'm one of the very few people with Blackboard admin accounts in our university. The biger problem is that (if I read the article correctly) tutor's account had administrative priviledges - their system role was that of an admin, which gives you practically unlimited rights on the system.
Ordinary users can't reset passwords for other Blackboard users, this can only be done by sysadmin or account holders themselves.
Though we've had our share of Blackboard trouble this specific problem lies with giving sysadmin rights to a numpty, could happen on any system.