I haven't taken many active steps not to depend on them, but it's troubling whenever I think about what happens if a bad apple gets in the bunch. If I were to become a target of someone with access to Google or Facebook level data, there would be nowhere to run.
I don't foresee becoming a target in the near future, so I haven't done much to 'liberate' myself or switch to open solutions. For now the services provided give me many more benefits than worries. I just wanted to point out that this article is playing on xenophobic fears and we should be careful of doublespeak.