I don't understand. There is no rule anywhere that says an open source product has to focus on user choice, or that says a corporate solution has to disregard user choice. It's up to any group of developers to decide if they want to support a certain level of user choice or not, for whatever purpose.
You may want to read the email thread on this website for a further explanation of this idea in how it relates to Linux: http://islinuxaboutchoice.com/
You may want to read the email thread on this website for a further explanation of this idea in how it relates to Linux: http://islinuxaboutchoice.com/