That does look and feel incredibly stupid lol.

They should just alter their formula so that short range makes it straight. Starts straight and curves more and more as range increases. Longer ranges should add an incremental attack penalty at the same time. Archery doesn't make any sense in that a nearby target who is a little bit higher is harder to hit than someone at maximum range. Range should be a much more important factor with ranged weapons. And high ground should not add any attack bonus.

I seem to remember the arcs also let you hit targets over ledges you don't have a line of sight to. Can anyone confirm? Clearly line of sight should be separate from the projectile arc and you shouldn't be able to hit someone you can't see, much less with advantage.