They play a Saints team with an interim coach and their third string QB, a Falcons team that has lost four straight and has seen their season go down the toilet and is facing calls to bench Cousins, the Cowboys who are officially done, and the Eagles. If they go 1-3 over that stretch they deserve to miss. Realistically 2-2 is their floor, and if they go 2-2 the Rams would likely have to go 4-0 since the Commies are 5-3 in conference and the Rams are 4-5.
They have a better chance at resting their starters their final weak of the season than they do missing the playoffs at this point but they still need to take care of business, and they should be fresher than most teams down the stretch given the timing of their Bye. Really no excuses here.