Points for polite and mature discussion for the greater education.
There was an accident at LBA some number of years ago where a Citation jet commenced the take off roll with the parking brake applied. The occurrence was similar to this incident except there were no fatalities.
The unmeasurable quantity here is what is normal acceleration? if you do not meet V1 on the take off role how do you know if you either have enough acceleration to continue on a short runway or have enough space to try and stop?
With most small or mid sized jets the V1 is calculated on a balanced field and possibly based on brake energy limits, not runway distance available. On a short runway with one speed V1/Vr which will be at the end of the TORA then the aircraft will never stop in the clearway if the stop is initiated late in the take off run.
Will this incident prompt a revision of take off calculation procedures for small or mid sized jets?