It‘s a pretty strong case for Len to be Satoshi, admittedly. And it would explain the mysterious silence from Satoshi Nakamoto - he's dead. Of course one could argue that Satoshi is alive and choses to be silent on purpose, since being worth tens of billions of dollars might come with some strings attached, ie kidnappings, black mail, extortions etc. But one would have to have a rather strong personality to not give…
I've never bought the argument about kidnappings etc, with billions of dollars you can hire people with lots of guns
But when you suddenly become a billionaire, what do you do? Ring up some private security company? You would need to trust them not to screw you over. It's kinda boils down to you not being able to trust anyone, not even governments that might consider you a criminal.