True but if AWS knows your lock-in is less locked-in, I'd bet they'd more flexible when contracts are up for renewal. I mean it's possible the blog post's primary purpose was a shot across bow to their AWS account manager.
Our state department of education is one of the biggest networks in the world with about half a million devices. They would occasionally publicly announce a migration to Linux.
This was just a Microsoft licensing negotiation tactic. Before he was CEO, Ballmer flew here to negotiate one of the contracts. The discounts were epic.
