From what was said in the Discord, it was intentional. They're trying it out. Brad gave a solution to revert the behaviour. Just go in \Epic Games\GCIVTestEdition\Data\Core folder and open GraphicsDefs.xml. Then swap the numbers of these two lines so they look like this:
<StrategicIconDistanceThresholdLow>4500</StrategicIconDistanceThresholdLow>
<StrategicIconDistanceThresholdHigh>3500</StrategicIconDistanceThresholdHigh>
This should make it work as before. Hope this helps.