Where it's the most beneficial is when I can walk around e.g. a mall and the decide to heat/cool the car before leaving, or coming back from a hike I can start cooling 15min before we arrive at the car so it's nice and cool when we get there. If I can only start it 300' feet from the car, I might as well just wait the 30sec it takes to keep walking until I get there, it won't make a difference.

Edit: for EVs it doesn't need to start/enable the entire car, it only starts the AC unit.