Well,
I think it is good info (and a very precise way of testing the different faults) !
Up until now, the only explanation I have gotten for the famous "Power Fail" was that the power from the receiver (throttle servo connector) was bad, or the turbine battery was somehow disconnected shortly during flight. But this test suggests that a simple bad connection of the datacable to the turbine might do the same !
I have seen that a couple of times, the temp sensor reading going bad because of the cable (a simple cleaning of the connector resolved that)