Because it’s literally not better than the DmV
My county's DMV is fast and helpful.
Demand better from your government.
(And this still raises the question of why the consulates supposedly don't have this issue.)
DMV (at-least in Bay Area) is exponentially better and straighforward than any of processes around immigration / visa renewals.
The Oakland CA DMV, which is the one I live closest to, is quite nice. I've never had a bad time there.