My thought was more that you can have a more precise ISO increment selection. Otherwise you are stuck with selecting an iso manually at around 100 and only being able to go up to 200 or 400 in larger increments. The auto feature will go in...
I think the idea is to set to auto iso, then lock. This enables you to take the best shot possible. If you completely change the angle of the drone or face another direction. Then you unlock, and relock again to make sure auto iso adjusts to the...