Possible to improve LuCI QOS with some help text one liners?

Yes, specific the GUI. It's a little bad because that's the first thing newcomers probably start with when they search the repo for QOS (with luci in the back of their heads) and when they come from factory or ddwrt.

Thanks for pointing to luci-app-sqm, should also be the first thing beside luci-app-qos in the qos documentation