I agree with the article and am a big FSF GNU/Linux fan, but have to admit that I am ready and willing to pay AWS for RDS because it is so convenient for me. No worries about patching, backups, etc. I can always export the data, too, and load it into my own PostgreSQL server if/when I want to do that.

So while I do agree that free software is superior, not all SaaS is lock-in with evil intentions, and many people are eager to pay for the convenience and scale that it provides.