bullshit. continuous integration came out of netscape, which was open sourced by mozilla in the late '90s.
i worked for a company in the mid '00s that had some thoughtworks people come in. they were spouting all sorts of nonsense about design patterns and this and that.
i asked "how come nobody in open source speaks like this?" "oh, well you know the scope and scale of the projects and the quality of the code in the open source world doesn't compare to that which is locked up inside of companies..."