Calculating resistor values for STEF01 overvoltage protection
It looks like it matches the graph to me. It's a log-linear graph, and the pink line almost reaches the 20,000K line, which fits the 18,130K calculated.
The 10uA they are referring to is the current at the point of switching, not under any other conditions.
The circuit looks like this:



simulate this circuit &ndash; Schematic created using CircuitLab
We know the current through R_B is 10uA at the point of switching. We know the current through R2 is 1V/R2 at the point of switching.
The voltage across both R1 and R_A is Vout - 1V.
So the current through R1||R_A must be (Vout - 1V)/(R1||R_A) = 0.01mA + 1V/R2
We know R_A is 2.7M so 1/R1 = 1/(R1||R_A) - 1/2700K
.. and the datasheet equation falls out easily.