Having watched every game of the All Blacks the last decade and got to know them as well as any non NZ person ever could I am of the opinion that three things caused their demise today:
1- they were not allowed to be disruptive, their clever off the ball tactics were picked up and blown - dirty uncle Sam and his knack of pulling and pushing players off play; tackling people of the ball, side entries, offside line etc.
2- their inability to handle brutally honest in your face defense and a **** load of continuous pressure.
3- coaching staff losing the plot in the last 6 months - yes leaving one of the most destructive runners in Laumape at home, carrying semi injured players & over the hill ones based on past legacies and playing a past world rugby player of the year out of position - they created their own downfall.
England did the basics well, very well and thoroughly deserves this final, whether they have the mental aptitude to have two fabulous performances in a row remains to be seen