I don't mind the present tank balance so much as I do the discussion that surrounds it. "Utility" is a word that gets thrown about without any real definition, and really is just a catch-all phrase for "stuff on other tanks that I want but don't necessarily know if I'll even use." Most of the discussion of WAR's utility are thinly disguised attempts to convince the devs to buff the job back to it's former level of dominance. Maim isn't "utility", because NIN and SAM have slashing. Gap closers aren't "utility", even though players spent most of 3.x begging for it, because it's suddenly not good enough. Knockback-negation isn't "utility", because most people don't remember that it exists.

Cover and TBN are suddenly utility. Nobody cared about Cover for the past 4 years, and now that two tanks effectively have it, suddenly people are interested. And it's not even that the average WAR even wants this or knows how they'll use it. It's just being used as an excuse to buff the job. "Yeah, you have that er, bubble thingie, so we should do more dps." Right. I'll just go back to blowing bubbles at my teammates then. Look, I know that there are people out there really struggling with the new WAR compared to how it used to be in HW. That's kind of natural when new actions come out. Everyone is relearning their jobs. Nobody is playing optimally. We'll look back at some of the best players of this tier when our understanding of the jobs improves, down the line, and be surprised at all the mistakes that they're making. Opinions on what's hard or what's easy are meaningless if you don't haven't had enough time to master one job, let alone three.

Instead of "utility", I think that it's better to point to specific balance issues that you've noticed between the tanks. Is there a discrepancy in mitigation costs and self-healing on DRK compared to the other tanks? Is PLD's lack of a gap closer putting it at an uptime disadvantage on certain fights? Is there an imbalance of raid damage buffs on the three tanks? Raid mitigation buffs? These are specific questions that can be answered independently of each other, and tanks have advantages in some domains while being at a disadvantage at others.

At the very least, it'll dissuade the player-base from simply memeing the same catchphrases, and get them to actually think about tank balance and how to improve it across all three tanks.