Lord, please try to use some sense. Did you see that Japanese YouTubers were given hands on with the console? What that means is that multiple PS5s are out and people have seen them; that's obviously how I know there are multiple. Not just the YouTubers themselves but Sony staff members who set up the demo units, shipping companies that have sent units from place to place etc. There are many points of failure where someone could leak something. This happens very often with technology in production.
Focusing on games is great and I love what they've shown game wise so far, that's enough for me to get a PS5 myself. Do you however understand that people can actually want to see more than the games alone? There are actually other things about the console that people are interested in. It's not like they can only show one thing and nothing else, news flash, they can show multiple things! It's not like it takes away from the games by throwing up a blog post about the UI. About BC.