Well
PPrune at its best yet again.
MOR
The responsibility not to hit someone is that of the Captain. If you think differently then you are either not a pilot or a crap one.
LHR ATIS, every broadcast
"Pilots are advised to use caution in the runway holding areas as wing tip clearence is not assured"
And that is whether or not you can see it. You don't use tape measures you use your judgement. If in any doubt you stop and you never assume that the aircraft ahead is where he is cleared to.
On this occasion it would appear that there was an error of judgement but lets wait and see.
And you can't see the 767-300 wingtips.
NN