A better question would be what is the rational limit for operating?
If you are the manager, then 0m... unless they conduct a THA.
If you are the passenger, then.... 0m.... unless they understand THA and very basic physics.
If any of the stake holders (other than the crew) are under any illusions that LVTO (and as an aside LVOPS in general) are risky, just do the maths on the energy level of the aircraft on a takeoff. The A330 on a short run to the UK form the pit is going to have about 22TJ of chemical and kinetic energy around V1/rotate... and is assumed that no failure occurs above 80/100KCAS going through to V1, hopefully. That appears to be enough to spoil your day if as has been commented "people will never learn..." and some form of badness occurs.
badnesses... wrong runway, ie SQ6, offset, AUH (SQ at SYD landing...
) birdstrike on roll... engine fail, incapacitation, loss of visibility etc. etc. etc. etc. Can the crews be trained to cope with these events? probably. (I recall getting loss of viz above 80, critical engine fail at V1, and a second engine failure at rotate, with limit XW and yes/maybe, in a sim you can probably make it... wouldn't want to verify that scenario in a real aircraft. In the real world, having loss of viz in a LVTO is very unpleasant, about as much fun as a brown out on an assault landing...).
The current viz criteria for LVTO may sound reasonable, but if you are entering a runway in a right turn, the visual segment is such that the LH guy (Capt) gets to see zip in limit conditions. Not the case at AUH for 31L... but a factor at CKS/SQ6 and also in Basil's well rendered war story.
LVTO are critical ops, no question, yet they are treated as mundane technicalities by all other than the crew in general. I would doubt that at AUH the crew were as unconcerned as the rest of the system is, but there is always different ways of approaching the task at hand.
Report will be interesting.
In mean time, a great reminder of what should be seen outside on a line up, and to support such operations with a LLZ/PVD etc. counting the lights to verify the legal viz could protect more than the legalities, it may even save some "frangible" light pedestals and bulbs.
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Cicero (106 BC- 43 BC),
Pro Publio Sestio