What Schrödinger’s cat REALLY means

At face value it sounds like the electron is vibrating and it's vibration will cause it to act like a wave. Whether due to EMI or other factors, I imagine it's extremely hard to aim an electron in a straight line without some deviation. I'd be interested to see it pass through increasingly small holes until it can pass through one hole. The thing that makes me say this, it doesn't sound binary and if the model in the video is accurate, there is electron splatter on the face of the slit plate which makes me think it's arbitrary movement by the electron rather than choosing 1/2 every time. If it can pass through one hole as it's only choice consistently rather than splatter on a hole plate, doesn't that mean superposition is kind of an inadequate model, like schrodinger was saying?