No, the hot spots are most likely just where the sun is hitting directly, everything else is the light bouncing around. You can set your light bounces to 1 to see where they hit directly and stop. The thing with realism is that it’s not just the lighting, but a bunch of other things that have to interact just right. Realism is that thing that everyone tries to achieve but is crazy hard, all the Hollywood VFX companies can vouch for that.