He is not claiming an opposition to open standards, but that open standards are secondary, and will get thrown under bus if it conflicts with the primary goal of making money, and that it seems Google believes social in general and Google+ is the way to make more money, and that this puts open standards at risk.

Reducing your dependency on Google's support for open standards then becomes prudent.

Personally I'm sticking with a number of Google services, but I'm also taking precautions (backing up my data; my primary address is on my own domain so I can move away from Gmail easily if I want to (don't think they'd close it down, but they certainly can - and have - made changes that I find detrimental; I only stick with Gmail now because of a number of tweaks using Minimalist, for example)

It's not so much that Google has become horrible, but that they've taken a number of steps to be "less good" than what a lot of people have come to expect and depend on. They're on their way to being "just another company" instead of anything special.