TPS650830: Pullup resistor value for open drain outputs.

Why is the value for the pullup resistors for the open drain outputs such as the PCH_PWROK pin so large, 100kohms? Looking at the data sheet that pin should be able to handle 2ma of input current. Is there any draw back to using a smaller value of pullup resistor? I would like to wire and it with another open drain signal from the core supply.