A proposal to open source will go to an SVP (or compatible) who will cover their ass by sending it to legal. They in turn will cover their asses and demonstrate

A proposal to open source will go to an SVP (or compatible) who will cover their ass by sending it to legal. They in turn will cover their asses and demonstrate their perceived worth by enumerating every possible risk however small. The SVP puts it in their "don't touch" pile. Also, nobody within the corporation really benefits from the open sourcing. "I hopefully won some goodwill from nostalgic players" is not a thing you can put into your employee evaluation packet.