Gekai Kiara wa Shibou Furagu wo Yurusanai - Ch. 7

[Nitrouse]

Tbh, it gets a bit silly when it becomes "oh, they aren't actually that much behind modernity, but this country in particular deliberately surpresses it because healing magic is justifying the rule"

Just keep in mind that Modern Technology also suffers from lobbying. That problem is as old as Humans are.