Earlier quoted context omitted.
If i were you I’d take heart in the knowledge that the others aren’t any better, it’s just a matter of “when” they’ll get cracked in the same way
Not every network hardware provider ties everything to a "Cloud" for reasons. They may have breaches but they won't be this widespread.
In any case, this sort of a hack of any other company's root users would result in the same spectacularly catastrophic pwnage. That your root users have root access on your own machines won't help you.
What they need is to structure their security properly. I'm not sure why this user needed root access to everything globally for instance? That seems wrong to me at first blush, but it could be a matter of me not understanding their business model.