Durability is not availability!
Come on, Register! Read more carefully next time, please!
The "ridiculously" high numbers refer to DURABILITY, not availability (i.e. the probability, that the data gets LOST, not the probability that you temporarily can't access it). Quite attainable with modern storage systems... Guaranteed AVAILABILITY, according to the links you provided, is 3-4 nines, which is in line with what you would expect from a cloud service...
Biting the hand that feeds IT
