I talked to a few other engineers here about something that was unclear in the datasheet for the chip used on the D36V28F12. We concluded and then confirmed through testing that the EN threshold does seem consistent enough to use a voltage divider to get a low-voltage cutoff.
The EN threshold for a falling voltage is typically 1.2V, the threshold for a rising voltage is typically 1.35V, and the EN pin is pulled up with a 100k resistor. To get a cutoff of 10.2V, you can connect a resistor around 13k between EN and GND. This will mean the regulator will not turn on until VIN goes above about 11.5V, so whether that will work for you will depend on the rest of your requirements.
By the way, we have seen that the ideal charge and discharge thresholds for LiPo batteries (from a longevity perspective) is about 4.15V/cell charged and 3.7V/cell discharged, which is a smaller range than the 1.2V and 1.35V thresholds I just mentioned. You will also have voltage drops in your wiring that will vary with the current, so you might need something more reliable to optimally protect your battery.
Sorry about the back and forth and any confusion.