Well, melee'ing is stupid on a lot of things and a lot of melee-centric Red Mages are stupid. A lot of people in general are stupid though, so really it's not a surprise. The biggest issue is the difference between what certain people want, and what certain people believe is already the case.
Here are the facts:
1) Red Mage melee is absolutely not viable on anything stronger than T level outside Abyssea (or on hard things inside)
2) Red Mage already functions decently as a melee on things that are weaker than EM level
3) Red Mage has never come close to performing as well as a dedicated DD in the melee department at the level cap. We are talking less than half the power of a "real" DD job, even with practically no casting being done.
4) Magic will almost universally be a better use of a Red Mage's time on anything stronger than EM, no matter how much they buff Melee.