Earlier quoted context omitted.
"The Mr. Robot Malware?" You mean the extension that did literally nothing unless you turned it on in about:config? That's "malware?"
Sounds like it deliberately appeared to be malware, but wasn't. Which shows a strange and misguided sense of humor.
Mischievous easter eggs don't really belong in commercial software anymore (with very careful exception) but the allure still exists. I can't fault the dev team too harshly for this lapse of judgement, especially since it sounds from their blog post that they've taken the backlash to heart.