It depends what you want to receive from your complaint... If you would just like an apology then complain. But the apology will not come from that particular crew member but from a standardised letter from someone in customer services. Is that really then an apology? Crew are advised to be cautious with the amount of alcohol given, and maybe the crewmember in question had a bad incident and is more cautious than most.. So many reasons but no it doesnt justify embarrasment of a customer.. the best way to deal with it.. fly with another airline!