why a brick wall ? do you mean they should listen to you ?
they didn't want to act too fast ..it's not the band but the government ( who blocked the citizens to move by stopping works schools transportations etc ) I lived in japan (not Taipei) typhoon can come and go very quickly - they have several of those a year it's basic weather
it seems this one takes its time

they could have left yesterday just after arriving when it was still doable maybe but quick enough they stopped the airports too