1) I was being sarcastic. Sorry you didn't pick it up.

2) What Utility is necessary in this game that isn't already there? Yeah, RDMs could make mobs more vulnerable to, say, lightning damage, but they'd have to A) increase all the other BLMs damage and B) do enough damage themselves to make it worthwhile, otherwise you'd just bring another BLM instead. Sure, RDMs would probably be able to spot heal as well, but again, between PLD, BRD, and WHM, there's already enough spot healing.

Yes, I understand everything is up for grabs in ARR, but a lot of people get stuck in this "They're hybrids and should be able to do everything okay" instead of "They're a mix of magic and physical, but they do this one thing ridiculously well that makes them invaluable." The "iconic" Red Mage never did this.