I wondered how it could be considered 'controversial', but they do quote at least a couple groups speaking against it. The NSPCC for instance, who incidentally also warned parents about a Harry Potter video game because their children might want to learn more about the game:

>“Parents should also be aware that players may want to find out more about the game using other platforms such as YouTube, Twitch, Reddit and Discord, where other game fans can discuss strategies and experiences.