If the procedural errors had been caught at an earlier stage it would have been unlikely to result in the cancellation of the flight - indeed it would have more than likely departed at a similar time and in the same manner as it did on the day.
irrelevant.
coulda/woulda/shoulda...
the incident occured to *that* aircraft at *that* time, under *those* specific circumstances.
what's your agenda here DW?