I can understand the sentiment. Repeating is hard and hasn't been done since 2004; the Rams won their last three playoff games by 3 points and a play here or there could've ended their run; new key O-linemen; lost Von Miller, Stafford may be having elbow issues; crazy tough schedule, etc.
On the other hand, Stafford is in his second year in the offense, Allen Robinson was added, Bobby Wagner fixes the biggest hole on defense, secondary looks stronger.
So, we shall see. They should certainly win the NFC West, and if they're healthy for the playoff run, have as good a chance as anybody.