It's clear that a huge advantage has been lost, but it's not over yet. The teams have three more games to play. Dortmund still has a chance, considering that Bayern will play with Leipzig and Dortmund will only play with mid-tier teams. What they have to do to use it is to win all 3 games and wait for Bayern to lose points. The sensational result of 6-0 today also shows that Dortmund is still in this race psychologically. Last week's Bochum match draw was very hurtful for them, but there is still hope.
Yes dortmund team still has a chance its really impressive how much pressure they are putting on bayern which most of bundesliga fans didn't expect at the beginning of the season and i agree today huge result show how strong psychologicaly dortmund players are despite the young age of most of them, in the remaining games both teams can lose points but i think the pressure is more on bayern since they might end the season trophyless which didn't happen in a long time.