I'm also perplexed about the device blocking social media, email, etc. It feels like a restriction to your freedom, at least on paper, since they claim Android app compatibility, so how can they restrict you from installing an niche web browser from an APK? I'd also argue email is an important communication tool, even more than WhatsApp, but that's debatable.
The FAQ also says they only allow "AI" apps that aren't trained on copyrighted work, but I doubt their slop images are free of that.