Here is the thing, if you look at this board since 2016. You will see that each year, one of these three QB are better. In 2016, Dak was better, in 2017, Wentz was better, in 2018, Goff was better, and rinse and repeat.
Kirk is not better than Goff, he has a better team than Goff, but he isn't better. In fact, Goff always seem to outplay him in most of their matchup. And with Kirk, you ain't going far into the playoff, with Goff, you have a chance. Goff doesn't have Kirk # but he more clutch than Kirk, and is much better in primetime games as well. Kirk however is better than Goff under pressure.