I vote yes; here's why. That one play had us Steeler fans going from complete joy (IT'S A TOUCHDOWN!) to total sadness (He's out of bounds!) literally in moments. The season likely died on that one play; had Brown stayed in bounds, perhaps it propels the Stillers on to the playoffs and...
We'll never know now, will we? :(
As I told a friend, guess it was time to put Ol' Yeller down (aka this Steeler season). No one wanted it to happen, but it did anyway.
PS After reviewing the play further, Ben's lateral to Antonio looked forward as well, so, in the end, maybe it was all for the best.