Fundamentally, I do agree with part of your post. Far too many people think that its even in the realm of possibility the devs will do radical changes to DRK's job kit and how it operates before 7.0 and not just simple tweaks.
But at the same time, for an ability like Walking Dead that is so fundamentally broken and negative, it's very easy to radically change how the ability works and make it far more usable and player friendly without even adding or re-writing the tooltip:
Unless the backspace key is broken on every computer at Square Enix HQ, they can radically change WD into a usable ability by wiping out a single IF statement and nothing else. No thought or game design doctorate needed.
Otherwise, FortenightShade has pretty much all of my opinions summarized. Flavor is always welcome in a job's kit, but not at the detriment of its usability. They tried to be unique with Walking Dead in a simpler time of the game's lifespan, but content design and job balance has rendered Walking Dead an active hindrance rather than a benefit, and it has no place in today's FF14 design.