It would be hard to bullshit this passed all the people involved.
Do you not understand people? It’s easier to BS 10 people than 1. You just BS 100 and the 10 weakest people tell you who they are. People who want to work on brain interfaces want it to work. Whether it actually works or not depends on the real world, not the number of people involved.
Because different layers protect you against different things. It’s like how you have anti-lock brakes, a seatbelt, an airbag, and crumple zones on your car. You don’t just have one thing to protect you.