MCH definately needs some buffs. It has the same utility almost as SAM or BLM and yet as far as im aware RDM does more damage than it.

Let me say that again - Red mage does more damage than machinist, and regardless of movement too. People will use the excuse of "Oh well we can move and shoot at the same time" but honestly, that's just a benefit of the role and shouldn't be justification of why they're currently AS weak as they currently are, especially when you consider most downtime in fights these days is forced like in phase transitions when the boss goes untargetable etc.