The flip side to that is the "many rural users are at the edges of existing coverage networks".
A 4G network can reach about 10 miles (16km) - a 5G network is about 1000 feet or 0.2 miles (about 300 meters).
Unless the providers are placing these on every other power pole, most rural users aren't likely to see 5G coverage. For what it's worth, my parents' house is about 0.1 miles from the road and 0.5 miles from the next nearest neighbor.
I believe that it is unlikely that wireless 5G will get out there (they don't have 4G service either - they're in a valley and use a femtocell for home phone use).
They don't have cable or fiber either and switched from a load balanced pair of DSL lines to Starlink.