Think there's a bit of misinformation here..for one thing, RDM for the longest was the only job in the game that could solo the gods and minor HNMs (simurgh, roc, Ash dragon etc)..secondly it was a community problem that kept RDMs "in the back row" since I mean, RDM is on pretty much every non-heavy front-line set of armor/accessories in the game, including more than adequate haste gear, sword skill (especially at 99 cap), even a spell that grants them double attack.

So if anything it wasn't SE that ruined the job, like always it was players that ruined a job.

First, DO NOT give rdm a refresh spell, from the moment you got that spell in XI, you became nothing more than a glorified battery charger. this will also give players more incentive to carry items that recover/refresh MP.
BRDs in XIV aren't told to just sit back and only refresh lol. Giving another job Refresh would help more than hurt honestly. especially given the endurance style fights SE are creating.