Earlier quoted context omitted.
Honest question: how do you feel about Google's security history?
I suspect they do a good job at a technical level, but they have interests in advertising that are at odds with my privacy interests. I also have no way to know if they are doing Dark Nefarious Things.
From your initial comment, I got the impression that you were claiming that closed source software could not be excellent..meaning secure.
By the way, I'm a big GPL/free software nut. However, I understand the place of closed source software, and under the right circumstances, it can indeed be excellent.