The article makes a pretty good reason why it's aimed at the state. The potentially close relationship between private companies and the state and how intelligence is/was likely shared between them. If that's true, NSO Group is acting as an agent of the state - thus Israel would be spying on France and caught doing it. Thus the anger directed at the state level, as well as the company and governments. A lot of the government you would want to be upset at, well, they don't give a shit and that's why people don't like them.