No one disagrees with what you said about spells working and skill playing a bigger part in potency Mageoholic. That is 100% how RDM should function. However, that's only a small part of a much bigger issue with RDM. If SE was to only fix skill and potency RDM still does not bring very much to a high level fight such as VW. Not when most support jobs also have access to some of the same spells, healing magic and lots of conserve MP tools.

With Enhancing magic we have to look at what RDM brings to the table VS. other support classes. Yes RDM can heal, haste, cast high level shell/protect, and Phalanx 2 but is this really worth a spot when you could get a WHM to pre-shell/protect and have a SMN,COR, or BRD not only support heal/DD but provide much better performance Enhancements?
As others have stated. No one is looking for every RDM spell to suddenly become AOE. But RDM is in serious need of some unique RDM only Support spells so people will actually want to spend a PT slot on one. This way RDM can quickly buff his/her PT but is not locked down into another mindless spell to cycle.

At the moment RDM has a lot of self-target spells which means absolutely nothing in a MMO that is solely based on team play.

Mageoholic, you are correct that skill is very important. However, the stuff others have mentioned about AOE buffs and RDM's general lack of unique spells is also correct. In my opinion both go hand in hand.