Paid subscription needs admin login every 90 days?

Hi!

When reading though the "Manage Accounts, Subscriptions, and Administrative Roles" page on msdn, http://msdn.microsoft.com/en-us/library/azure/hh531793.aspx#BKMK_frequency I found the the quote:

"Account Administrators must log in every 90 days (or more frequently) to keep the account active. Inactive accounts are cancelled and the related subscriptions removed."

Is this correct? 

My main concern is about PAID subscriptions here, not 90-day trial stuff.

If it is, it sound like there is a risk of customers loosing entire production environments if e.g key persons are abscent for work and have not properly handed the login task over to some collegue.

So, anyone knows if the quote above is accurate?

Best regards,

Andreas