But it's a sword.

[Duelle]

Hybrid doesn't mean having a strict 50/50% rate in using swordsman and caster skills.

Hybrid also doesn't mean having things solely for the sake of having them (like a sword that is barely used).

But that would make RDM a "Melee caster DPS", and completly turn the use of Corps-a-corps and Displacement around, almost making them useless.

Which wouldn't be a bad thing, seeing that rotational mobility is a bad idea in a game that has things like telegraphs and ground-targeted effects to deal with in combat. It looks cool, but it's not a good element of gameplay. Not being forced to always use Displacement and Corps would simply mean the job has mobility to be used when appropriate, making those skills no different than Elusive Jump/Spineshatter Dive/Repelling Shot/Shoulder Tackle/Plunge.

FFXIV's Red Mage is primarily a caster, jumping in for a token melee combo that is useless without black and white mana.

Fixed it for you. The system in place is clearly built for a caster, and the melee is an afterthought that reeks of being added at the last minute. You could take out Riposte, Zwerchhau and Redoublement, replace them with a ranged mana dump ability and see next to no difference in gameplay.

I get that some people may want more melee action from the RDM. But not everyone does.

Much like some are happy being a turret that sometimes gets to jump around, but not everyone is.

I don't know about you, but I'm measuring what the devs gave us against other MMO hybrids, some of which have a much better handle from both design and gameplay than our "wannabe BLM with a sword that needlessly hops around". As I've mentioned before, I had hoped the devs would learn from those other hybrids instead of essentially going "lolno".