Why does mages have to choose between 4 stats and other just 3

[Alistaire]

Simple question and want to know what the comunity thinks. Why does mages, SCH/WMH/SMN/BLM, have to choose between PIE, DET, SS, or CRIT while melee just choose between DET, CRIT and SS. Why not add some gear for melee that dont have VIT?

PIE is not on caster gear. So they fit the same mold as melee.
Healers are a whole different bracket of balancing from DPS and the system as it stands is well-balanced.