The pilot said there was no indication of fire, under what circumstances should the aircraft be orientated so that the potential fire is being blown away from the fuselage?
I think you have answered your own question.
If there is a fire warning then, although identifying the engine concerned may be irrelevant for the purpose of the RTO (see earlier posts), once the aircraft has slowed it should be positioned with the suspect engine downwind.
"Procedures should be developed to enable the crew to position an aircraft,
when a ground fire emergency exists, with the fire downwind of the fuselage" [my emphasis] - AAIB Safety Recommendation made as part of the Manchester/Airtours accident report.
In this case, as you rightly say, there was no fire indication and so the question didn't arise.