cmw,
Thank you for the voice of reason
Firstly, no matter the real reason behind this tragedy let us please all wish our heartfelt condolences to the families of those who have died.
Secondly, you are quite right that too many people here have been just like the rubberneckers at a motorway accident. Even an all EFIS cockpit has standby electromechanical horizons, ASIs VSIs and altimeters. Any experienced IFR pilot is capable of operating on these even in the event of a total electrical failure.
The actual cause may never be known given the people involved, though there will always be conjecture in a case like this. No matter the real cause, no matter those who are probably speculating based on the real evidence, this is a real tragedy for the families of those involved.
RIP all those departed.