what happened was most out of character
Not intending to delay the hanging.... of course.... but one feels compelled to point out that people who normally do not drink much, if at all, are often the ones most likely to be caught in a situation of inappropriate public intoxication.
Serious drinkers, who imbibe regularly for taste or nourishment, accumulate enzymes and other metabolic adaptations in their bodies which allow them to more quickly process and discharge alcohol. They also 'learn the ropes' of managing and avoiding intoxication by balancing food and drink, consuming vitamins, drinking water, etc.
By contrast, your maiden aunt Minnie, slim as a rail and dry as a wadi, will tend to very quickly go out of control. She well may turn into a naive but willing sponge if someone triggers the process by pouring the first few Harvey Wallbangers in her cup instead of tea. Add an innocuous antihistamine or two, and she will be even more susceptible.
So..... circumstances alter cases. Surely the pilot involved should be given some benefit of doubt until full facts are known.