[Blas]

I watched the Video about 5 times. Looks like the spinner came off under deceleration which would point to a loose spinner. Now if the hub was cracked or the spinner was cracked that's one thing. My guess is it was just loose. The safety wire acts as nothing but a tell tale visual indicator as to whether the spinner has moved since installed. I usually install the wire a bit loose so if it tightens up I know something moved. Don't believe overtightening is would cause this failure. It's not like you gorilla'd it on I'm sure. I would bet all whould have been overtightened in that case and I'm sure they were not. While any damange is unfortunate, it could have been much worse in a highway senerio...
Define aftermarket parts....maybe Trigo's and Vintage spinners? There are known limitations with intermixing wheels and spinners.