The poor pollsters are a weeping in their cups and because they are so (self) important we all have to give them big hugs and lots of calming 'there, theres'.
They screwed up the general election, the EU referendum, Trump, in fact just about everything the touched, and now they are performing mea culpa and entering into lots of navel gazing.
Well chaps and chapesses, tough luck. Your days are numbered. There are now so many avenues for people to become informed that you cannot 'swing' a result any more, and you know what, that is a good thing. A very good thing.