There are a lot of people who don't know stuff. Nothing wrong with that. He says in his video "I love Google, I use all the products. But I was never expecting for all the smart engineers and all the billions that they spent to create such a product to allow that to happen. Even if there was a 1% chance, this seems unbelievable to me" and for the average person, I honestly don't see how you can blame them for believing that.
Didn't sound to me like GP was blaming the user; just pointing out that "the system" is set up in such a way that this was bound to happen, and is bound to happen again.
I think there is far less than 1% chance for this to happen, but there are probably millions of antigravity users at this point, 1 millionths chance of this to happen is already a problem.
We need local sandboxing for FS and network access (e.g. via `cgroups` or similar for non-linux OSes) to run these kinds of tools more safely.