The author forgets to mention that the 49ers Super Bowl birth was more about their defense than Kaepernick. He also fails to realize that there are other reasons for Kaepernick to settle (other than a "massive offer"), such as the distinct possibility that he might not have a strong case, and he might not win. Settlements are both sides hedging their bets, nothing more.
Or d.) his level of play doesn't justify his salary demands and/or fan backlash against the team.