Flatter to deceive?
I am sure that M$Soft knew what they were doing. As a mega-rich corporation dangling an employment opportunity they sucked him dry of everything they wanted and then tossed him aside.
Many years ago I had a simple bit of PC hardware that made me a nice living. A "prospective" large customer called me and, before placing an order, wanted more internal information about the product to make sure it would be accepted by their quality and inspection regimes. The order would have doubled my turnover in an instant. Naively, I freely gave them all they wanted without an ND in place. I never heard from them again but I know they fulfilled the requirement internally.