The current federal government in the USA actively encourages federal agents to use illegal and unethical methods, and promised them protection and immunity.
Are you sure ? They say in the article that they were not able to fing out who sent the email. Site was behind Cloudfare (so US).
It seems 57% of people in France can speak English, which I can easily believe:
https://en.wikipedia.org/wiki/List_of_countries_by_English-s...
No reason to doubt this is coming from a French person.