In xi I played corsair a lot. Learning just where to stand while casting rolls to hit the party members you wanted to hit and missed the ones you wanted to miss was one of the ways you became a good corsair. Being able to hit both your healer and your paladin with a refresh roll whilst not overriding the att or acc rolls on your mellees took skillfull placement. Needing to be skilled in your job is a good thing, I'd rather not have range indicators.