Not just a blackout---they were threatening to put legal pressure both on YouTube directly (to show it was violating the safe-harbor provisions of DMCA) and the tech sector in general (to modify safe harbor to give copyright owners more control via legal remedy).
YouTube capitulated to a technological solution in part to avoid a legal solution being forced upon them.
I expect you're getting downvoted for your attitude more than your content. Leading with a blanket "You're wrong" doesn't encourage a productive dialogue. Neither do "learn to read" and "I'll spoonfood you".
I wouldn't say "You're wrong" is necessarily offensive per se, but I do think it tends to shut down discussion rather than encouraging it. I wouldn't have down-voted if not for the more egregious follow-up though.
No, there's no mysterious search for offense. If you don't get that opening with "you're wrong" is not very diplomatic, this might be something limiting your career
YouTube capitulated to a technological solution in part to avoid a legal solution being forced upon them.