I would argue this decision against social networks put Japanese developers in certain time frame, where it is out of touch with most gamers. Not everyone shares video footage to do a complete and thorough walkthrough, where the game made bare and YouTuber walks off with ad revenues. And, even if most people were, the video game as a medium, enforces that one must play the game to actually know the game. I suspect these decisions will be slowly withdrawn in the next generation of consoles.