Currently this is a beautiful but misleading visualization. The stark color difference between 0.99 and 1.01 is much less significant than the difference between 1.01 and 1.36.
For an example of someone getting mislead by this, here the speaker says "Florida has just gone in to the red" which is the wrong thing to notice, given the width of the confidence bars. https://youtu.be/WLST_Kmjopo?t=955 .
The easy fix is to color anything at +-0.05 of 1 as grey.
A more interesting improvement would be do use the confidence interval to decide what should be grey.