This doesn't make mathematical sense.
If it's a 90.89% win to kick, then it would be a 94.39% to go for it. Higher percentage is higher percentage. "It's not worth the risk" doesn't make sense, in a vacuum, at least.
To Spider's point, there are things like scapegoats and optics, so maybe you kick for that reason. But in general, you take the likelier chance of success when given the choice.
Yes it does make sense. Those percentages factors assume both scoring opportunities were successful. However, we all know that kicking a FG from 20 yards has a success rate of over 90%, whereas the success rate of scoring a TD from that location is much lower.