> I'd rather be running a Debian, with systemd, and boring regular utilities, than the bespoke environment openwrt has crafted together.

Yup, that's the answer. Debian is rock solid, and a script with a bunch of iptables and iproute2 commands is so much simpler than the mess that is OpenWRT's network setup. I only use it for dumb APs, and even then it's questionable -- the UI is nice, but configuring it is unnecessarily complex IMHO.