The Ravens beating the Lions took away margin of error. If the Ravens had lost, they'd be 7-7 with tough games against NE & Cincy coming up. Very possible that they could have finished 7-9 or 8-8, which would have then given Miami an opportunity to make the playoffs at 9-7. That looks very unlikely now.
We still have the exact same possibility of making it in at 9-7 as we had if the Ravens had lost tonight. Thats what people seem to be failing to understand.
We still needed the Ravens to lose one of the other games they had lost tonight in order to get in at 9-7.