it's not a fluke if you force a fumble, and they once again beat a prolific GB team on the road that everyone had penciled in for the SB. and unless you count the missed pass from Brady to Welker in the 4th, nothing fluky about their SB win.
they won three playoff games on the road, including Dallas (a team that defeated them twice that year) and GB in arctic conditions. then they punched Brady in the nose for four quarters. Tyree was a fluke, but not their championship.