I’m guessing right now ofc on how they model whole thing, but - It seems like they actually made this decision fully consciously, because first time in flight sim history we can observe variable visibility conditions right next to each other in both dimensions. Which is super cool. Previously we could see that only vertically, like haze layers or other tricks that Active Sky implemented to simulate this. But now we can observe different visibility conditions that stretch both vertically and laterally.
Example - airport A is in light rain, 2SM visibility and few miles ahead we got Airport B with clear skies and 30SM visibility. It is now possible and I have seen that couple times. It looks absolutely stunning.
Probably they could just add one additional slider for now that would simply set manual control over visibility globally and scale it with statue miles instead of some aerosol mambo jumbo. To apply manual vis locally it would need some kind of weather painter, like XP10 had.