I agree with that but I still think Johnson deserves a 3rd year just to make his tenure comparable with other failed coaches and it doesn't look like he's going to be fired this season anyway (likely would have been done by now). If we don't see at least a .500 or better season next year, I would want him to be fired and would be irritated if he wasn't.
I just don't see the point of so many people continuing to argue that he should be fired now when that appears to be very unlikely. There is no argument about the results. They speak for themselves. The evidence so far indicates that he is unlikely to be a long-term solution but he deserves at least one more season to show that he could be.