There was more than one La Parka. The one that was in WCW is now known as L.A. Park, and is still active. The other one was the replacement AAA came up with after the original left; AAA owned the name, so the original had to change it.La Parka must have hit the guardrail pretty hard. I wonder if the operation done on him was botched or if it was one of those that can either save your life or kill you.
Just watched the video you linked @XYZpdq. That rail had no give to it.
By the way, what is Shane Helms about that this wasn't the La Parka in WCW?