Final 3 Greens.
Why on earth would you expect an individual who has no need to use a laptop or any other mobile electronic equipment relying on wi-fi to know where, within the terminal, there are strong signals?
What do you expect staff to do, wander around the terminal holding a laptop to see where the signal is strong?
Beggars belief that so called 'intelligent' passengers can think that this is some form of customer service failure.