I have no wish to start a flame-war here but I would politely disagree with your point of view. Even non-techie users are taught not to reuse credentials. Sure, they still do buuuttt...as an Admin for a 300+ client CMS system ... to not know any better is inexcusable. Even if they didn't know it at the time of starting out in the industry - at what point would they be so blind as to not know / have read about hacks of others and/or the existance of haveibeenpwned and seen the error of their ways?

Sorry but no. No.