It seems that a loss of situational awareness was a major contributary factor, and this was partly brought on by the spurious lighting/weather/markings, etc.
However, what do you do in aviation if you have ANY element of doubt. Well of course, the best answer is stop and reconfirm if operationally possible, even if that doubt is 1%.
I have many a time seen crew come off high speed taxiways and shoot off into a maze of taxiways, often making a mistake, or even had awareness problems taxiing from parking bays. Sitting and seeing this whilst operating, or observing from a jumpseat, highlights an issue which many are guilty of in many situations.
Let everyone learn once and for all if you are in doubt about anything STOP (if you can), ask, and re-orientate.
If we don't, people will continue to taxi to the wrong bays, turn into the wrong taxiways, line up to land on the wrong runways, bust flight levels, and very occasionally try to take off on the wrong runway.