CDC as a non-specific buff aside, I don't really get how one could imply RDM's magical side hasn't grown more significantly from the 76-99 push.
i've never understood why RDM nowadays cry about meleeing... does anyone remember when some of the best WSs u could do could barely hit 500, since they introduced CDC it's been great, and now Requiescat, anyone can get a solid WS np.
My thought on CDC though is that the particular jobs that can use it are not coincidental. For much of the history of the game, sword weaponskills were never contenders for strongest weaponskills in the game and, in the rankings of weaponskills added in the latest era of the game, it is definitely somewhere in the top half if not the top quarter. Quite a number of the Empyrean weaponskills, in reality, aren't that good.

Why the sudden discussion on nerfing Ukko's Fury or Victory Smite? Because of the particular jobs that use them. CDC is strong. But only PLD, RDM, and BLU can use it. And they're not at risk of marginalizing other damage dealer jobs. So yes. CDC may not be a melee buff specific exclusively to RDM, but it's pretty close.

If it had just been business as usual, CDC would've been a better weaponskill than Sword users really deserve. It could've ended up being Savage Blade to MNK's Asuran Fists all over again.