Limits where you can do business...
Being just less than a mile from a major fibre-optic trunk, a little over two miles from the nearest cable TV drop, and 10 miles from the switch (as the telephone lines travel) I can gain access to none of them. My Internet connection is via wireless, specifically Motorola's NextNet technology, which Is OK but, as provided by my ISP and their strategic partnet (more the partner's fault) is subject to packet losses like you wouldn't believe putting performance is all over the map.
Throughput can be as high as 2.5Mb/S but quite often is as low as 50Kb/S. With this kind of performance even an SSH connection to a client's network is painful to use, and VNC must be used in low quality mode to make it useful at all. Likewise using cloud services and storing large documents in someone else's servers would be a nightmare. Then there is the added costs. Sure it sounds good, but getting an ISP to admit that their email server has a problem is a huge pain, I shudder to think about what it will be like to get a cloud-app provider or storage service to admit they cocked up.
Bottom line, my data is mine, it is on my machine, in my RAID 5, on my server. I can use the Internet to get to my machine but I do not HAVE to use the Internet to get at my data or applications. When things break I fix them, but the things that break are here where I am, not in some server-farm in another country.
When he says "And only rarely, he said, will Google be forced to give up your data without your knowledge or against your will" he is saying that they WILL be forced to give up your data without your knowledge and against your will when asked to do so. That it is without your knowledge means you will never be aware of your being spied on. Not good.
Google is great, Android is wonderful, and I even use GMail on occasion... but my business uses my server at my place of business with my backup systems where they are under my control (either directly or indirectly through another). I use open source software and I pay for it because it should continue to exist so that we who rely on Personal Computers are never under the control of those who supply software as a service.