See, Adept powers are the backup if Martial Arts aren't made core. And they should be.
And before anyone comes along thinking that the idea of a Martial Art for ranged combat is somehow wrong, there's a few martial arts all over the world that would like to talk to you - let's start with kyudo.
Skills for how your using them are a bad idea. Full stop. It intuitively won't make sense to a great deal of players, adds needless bloat, makes building characters more restricted rather than less, and doesn't solve any of the issues whatsoever. However, the core of the idea, specifically introducing something so that different characters are good at using weapons in different ways, does ahve merit but needs s different implementation.