My, my do we have some things to sort out here.
RDM has been bottom of the barrel alongside Dancer for the entire patch.

Objectively false; the lowest fight RDM ranks currently is E1S due to weaker cleave options, and even then it's still higher than MCH.
The discussion around Raise Tax is ludicrous.
Not really. Raise tax is a pretty viable concept when you consider how powerful battle raise can become. It's far too subjective and relies on far too many factors to truly quantify its use, therefore it's safer for the developers to make the job it's attached to a weaker one. Depending on the fight, the players fighting the boss, the jobs the players are using to fight the boss and what's going on with that specific group in the encounter battle raise can become the strongest button in the game. The opposite is equally true, where it can become one of the most useless buttons in the game. I understand where this gripe comes from because the few RDM that want to push it to its limits will feel that button's degrading usefulness as prog ends, but saying it shouldn't be considered for balance is just frivolous.
We know that "raise tax" isn't even a condition for RDM to have competitive output. Throughout Stormblood, RDM has always been on par with BLM.
I'm sorry, what?

Not to mention the fact that BLM's mobility vastly outperforms RDM's mobility in Savage right now - the single GCD of movement that RDM gets (dependent on standing still every 2.5 seconds) cannot compete with the on-demand chain of instant GCDs and multiple teleports that BLM have at their fingertips.
RDM vs BLM movement can be summed up in that RDM has an advantage when it comes to on-demand short-term movement, and BLM has the advantage for on-demand long-term movement. They do very different things, and you can argue fight design caters to one type of movement or the other but comparing them is a bit pointless.
Why would anyone bring a RDM when they could bring a BLM? Verraise is irrelevant here. Either you need the raise and you're not ready to clear (damage doesn't matter), or you are ready to clear and you just need more damage (non-healer raising wont save you).
Calling Verraise irrelevant is just to fit your woe-is-RDM narrative. Verraise's potential cannot truly be stated without trying to stick every single group at every skill level in some compartment, which will never work.

Just give us potency buffs to put us in line with the other DPS.
You're already there, though. The bottom half of DPS are all extremely close, and the melee chunk of DPS that are so much higher have indeed been recognized. Your desire for outcry is based in hyperbole and falsehood.

If you've really spent time on it you'd realize how much of a boon Verraise can be and how difficult it is to quantify and balance such a thing.