They didn't ignore it. They drafted Peat to play right tackle and because of shortage at guard, that's where he's playing. Their expectations of Strief's play might be a different story, but they certainly didn't ignore anything.
They ignored the Guard situation and the transition for Strief. That was the issue for this year.
They elected to try an experiment with Peat and keepna declining Streif in place. The weak G, unsettled Peat and slowing Strief is going to bring turnovers, sacks and losses this year unless they find a better lineup quick.