[PhantomGremlin]

I understand what you're saying "in theory".

But in practice, here's what happened. In 2002 Chairman Bill said:

   An internal Microsoft e-mail tells the software
   giant's employees that security and privacy are
   the most important issues for the company's products.

https://www.cnet.com/news/gates-security-is-top-priority/

And yet, 15 years later, we're discussing yet another 0day. And Win 10's built in spyware is the absolute opposite of "privacy".

I'd rather judge Microsoft on their actual historical record, and not on whether Cutler's initial design for NT was secure and resilient.