AirRabbit:
The piece that goes unnoticed by many observers was that the airplane was, and still is today, certificated to take off with a 50% loss in power.
Here's a bit of enlightenment for you: The airplane was cert. to continue TO w/50% thrust AFTER V1.
However, that's a very different situation from a TO w/ 75% of calculated thrust at brake release, coupled with contaminated wing surfaces and who-knows-what on the runway. He didn't reach V1 until he was on the far-end upside-down numbers. I don't have the report at the ready, but I don't think he ever reached Vr.
This accident could have also happened with a gross TOGW error, or dragging brakes, as well as the EPR error. That crew sensed the slow acceleration in the seat of their pants but didn't abort when their common sense told them to.
MEASURED acceleration (from the INS, e.g.) is a cure for such accidents.