4A enrollments have stretched enough that Valley/Waukee are 3 times the size of the bottom enrollments of 4A like Hoover or Mason City. If Hoover and Mason City played teams 3 times smaller than them, they'd be playing 2A schools like Albia or West Liberty.
Some restructuring of the class sizes (42 in 4A football, at least 54 in all others) or creating additional classes is probably overdue to begin with, even though that, based on enrollment alone, would make things worse for every metro school save Hoover.
Maybe I'm just nuts and it's always been 3X top-to-bottom in 4A, just with different schools in different places, but it would be interesting to know how the 4A enrollment spread has changed compared to the mid-2000s, mid-90s, mid-80s. But again, without some other factor alongside enrollment, this kind of tinkering probably only makes it worse.