We don't need any more drama...
Let's not go with who is right but what is right. Look at the facts and evidence and try to draw a conclusion from there.
My vote goes for AA if the data I read from MPowereds car shows excess of 8,450 RPM while the supercharger was fitted (based on mileage).
If the ECU readout doesnt show this, I vote for MPowered. And this isn't necessarially a vote against AA, as it could have been other factors that caused the engine to fail. There doesn't seem to be any conclusive evidence yet that it was a problem with their s/c build or detonation, etc..