Coconutty
You seem to have fallen into the same trap. You assume that the aircraft would have stopped in the same place, it wouldn't, it would have still stopped approximately the same distance from the 33 threshold giving the same TODA. The only advantage would be having less of the slope to try and accelerate up.
Also just to correct you the runway was open for arrivals an hour or so after it was opened to departures. If I remember the figures correctly it was R15 TORA 1650m and R33 LDA 1300m. I understand the only aircraft that did land was the citation bringing the engineers in to assess and move the 733.