Most of the population is in city. And the cities have grown quite a bit since 2010s. Fresno the city alone is over 550k people (about half the county) and thats not counting Clovis/Madera and a host of others. Fresno has been growing while the rest of the state has been (relatively) shrinking. Although that has been changing as of this year (population around the state is growing again).

The issue is that the districts themselves will not represent the area at all as they are drawn out. And I dont see a lot of discussion outside the actual state about that.