I think this is another example of adults making adult decisions.
The hype of Pittsburgh coming to town is not going to 'press' the coaches and trainers to trot out their new toy, or their workhorse back, knowing that we have a 7-2 record and a serious playoff push coming, especially 4 days later against the team that's 1/2 game behind us in the division race. 10/10 if i knew we could only win 1 game over the next 4 days, its going to be vs Philly over vs Pitt. Now obviously i'm not conceding this weekend, and I don't think the coaches are either. They are likely very confident in the game plan we've had defensively over the last 9 games to get us here against some MUCH more explosive pass offenses. They also likely look at a Steelers defense that is top 5 vs the rush, and 20th vs the Pass and have coordinated their offensive game plan a certain way that B-Rob likely would not have been the focal point anyway. If we're just going to be ramming our heads into a wall with the rush offense and hopefully get 2 - 4 ypc to be 'effective', we can do that with McNichols and C-Rod.
I think Ekeler, and the quick pass game was ALWAYS going to be an extension of the run game this week, so not having B-Rob is not a step down like a lot of us may think it is.