The new nightly builds (and official release when it comes out) has extra info on all the settings now when you go through them so you know what each setting does. For the most part Retroarch out of the box works extremely well for the "average" persons needs. It only gets tricky when people start getting into niche circumstances such as controllers and oddball setups.
Again like I said previously this is about not wanting these enhancements for Launchbox, it is about time and effort to do it.
Jason could either continue working on new and unique features or he could stop all the current development for god knows how long to reinvent the wheel that is Retroarchs UI.
Also like I said previously, this topic has been brought up before with the exact same comparison to OpenEmu on the Mac.