@clacke @smxi It is not discussed a lot because it mostly does not work.
The most obvious aspect is that they use open source precisely to avoid having to deal with the legal and procurement journey because it is slow and painful, and no one wants to talk to procurement.
The less obvious fact is that you cannot sustainably maintain most of these projects this way. You cannot get a vendor for long. And you cannot hardfork them, because maintaining them necessitate an expertise you cannot hire