your response seems to be "Yes, but, look over there, big corporation...."
This isn't a mac or a windows article, it's about security in the open source community. As you point out, anyone could infiltrate these open projects and corrupt them.
The bit where you lose me is where you claim it's easier to infiltrate a small corporate team than a big open one. Can you explain that? Surely getting to work on a project at MS or Apple is trickier than contributing to an open source project?
And as for calling other people smug, that's exactly how your post sounded to me...