Im aware of that, I've just never had a problem with it I guess. I still believe intel is better than spirit if you are shadow. I got stam and intel on my priest and he was able to level quickly, and survive pvp situations with ease. Maybe its just me but I would rather have the stamina to survive a long fight rather than have the spirit to regen mana while im already casting. Of course I was also alchy so I would pop potions constantly =/ I guess it really just depends on the play style.