That is a tiny part of what those companies do and was mentioned nowhere in that post.

You’re responding to something that isn’t there.

It's the only product I'm sometimes required to come in contact with from these companies. And also the only product of theirs that I inspected in any detail in Ghidra. And the only product of theirs that I have to defend my network against.

So I'm only interested in that aspect of their products. For everything else, all these security companies and their customers can devour each other, for all I care.