Calculating gate resistor value for enhanced active-region stability
The pole formed by the gate resistor and the input capacitance would actually make the circuit less stable. This is because there will already be a pole in the opamp giving a 20db/decade gain change (up to 90 deg phase shift).  If you add another pole in the loop you now potentially have 40dB/decade gain change with the phase shift being asymptotic to 180 deg.

I would add a resistor in the connection from the sense resistor to the opamp negative input and then add a capacitor from the output of the opamp to the negative input of the opamp.  This can then give you a dominant pole that rolls off the gain before the phase shift in the  output stage gives significant phase shift.
It cane useful to put  resistor in series with the feedback capacitor to give better gain at higher frequencies.

The resistor in the gate of the MOSFET can be useful for stopping high-frequency instability - a value of 22-100 ohms is appropriate there.