First Arians indeed called a poor game and has done that before. The Eagles decided to all out blitz and the Steelers never countered with draws screens flat passes and quick slants and fly patterns all which could have countered the blitz schemes.
And they never even attempted to establish a running game instead used deep handoffs for up the middle runs right into the oncoming blitzes
I also blame Ben. This for the first time. When you are getting blitzed on every play you must just get rid of the ball throw it away or throw quick patterns but at least stop holding on to it