It's possible, but as you said, it's a tinfoil hat theory, as will any theory at this point. As usual, the language used is vague and avoids actually saying anything of value, but then again, we've also had examples of specifically mentioned changes that hadn't come to pass. Prior to Endwalker's release, there was a statement that the healers outside of white mage would receive something similar to the stun on Holy--something that wasn't the same as just putting a stun on every healer AOE attack, but that each healer would have a similar answer like it, and that was never referenced again.
At this point, I'll believe it when I see it, pretty much.