How else can you explain their obsessive occupation with The Equation Group, which they themselves claim to be a (US) state actor, targeting other (US-unfriendly) state actors?
https://en.wikipedia.org/wiki/Equation_Group
An ordinary anti-virus company would never get involved in state-vs-state cyber warfare, let alone pour tons of money into researching it. How does that support their business model?
Do you think it's normal for a commercial company to spend so much time, money, and effort researching areas that have nothing to do with their core business, and will likely get them in trouble with their customers and antagonistic governments?