Yesterday on my walk, I was talking to a companion about Scouts using proprietary products.
As I said to him, we shouldn't be surprised by an organisation created by a member of the establishment using the tools of the establishment.
It all reinforces each other. Why wouldn't you use Microsoft, you're preparing kids for life in an organisation founded to train the next generation for Empire.
We need newer organisations, different thinking. Then you might get folks using FOSS.