the polls didn't miss anything they said Hillary would win and she did. Why would a national poll take into account our electoral college? It predicted the popular vote.
Generally I think people refer to the polls to see who is likely to win the election, not win the popular vote -- great many are unlikely to think there's even a difference, remembering there's an Electoral College only once every 4 years in the week or so leading up to election day, if then. If that's the case, they absolutely should take into account the Electoral College.