Other types of administrator cannot reset the password details of global administrators (for very valid security reasons). Therefore, unless you have...
Why is that stupid? If a user forgets their password, they come to you... but if you lose access to your account, and you're the admin, who do you go...
If any of your users do not meet the password complexity rules for Office 365 then they'll be guided through the self-service password reset process...
Provided you've looked through the wiki, nothing scary: Live@edu Upgrade to Office 365 for education (English) - Upgrade to Office 365 - Office 365 -...
With respect to the first document - where did you get it? That is not our current guidance as far as I know, although as you've said it is targeted...
Without wanting to sound overly defensive, did you check the planned maintenance schedule, and have you looked at the service health dashboard to see...