Citing that article looks like you're grasping at straws trying to find something wrong with Google. It's from two years ago and clearly specifies in the opening that a small number of users were affected. Microsoft's services went out for everyone, and today.

If you're going to suggest Google has similar difficulties, you might be 100% right, but you should point to a more relevant, recent article. A Mail system going offline two years ago for a small number of users is very different.