Your pressures are good, even if they are a little "out of spec". Either way, it indicated the valve body and all the internal hydraulic circuits are good and not leaking. It does leave one thing, the converter. It almost has to be. In your video, it sounds like a mechanical noise and in park the only moving part is the TC and the pump. This reminds me of back when I worked at the Ford dealer and did most of the automatic transmissions. Every so often I'd get one that testing showed would have to come apart and you had an good idea of where to look first, once inside. I'd get it apart and,,,,,,,,,,,,,,could find absolutely nothing wrong. Son of a...."It should work". It's frustrating, isn't it?