I'm not sure how I should feel about this.
In FFXI it seemed like the big complaint was that not enough jobs could tank. You had to have one to form an xp party and there were never enough to go around.
Now that three or so jobs can reasonably tank, the complaint is that the job that seems like should be the most qualified to tank isn't the hands down winner every time.
I guess the grass is always greener on the other side.
It's not that really. The problem is 1 jobs ONLY use is tanking.
The other 2 jobs are great in other roles, and both are top notch DD's. If you ever had a party with 3 warriors, you just tell which one to tank, which to DD. IF you had a party with 3 Paladin's, you just fake d/c...
One thing I actually liked about DC Universe Online was the role system they had for each character. Every type or character had a DD "stance" and a Role "Stance" which were Tank, Controller (buff/debuff), and healer. I think it'd be kind of interesting to see this in the FF setting. Iceand Fire characters, for example, were Tank/DD. In Tank stance / gear your DD was not negligible, but you weren't even close to the top on the DPS parse. However, all your moves garnered huge amounts of Enmity. You had to be at least one tier under-geared or slacking to lose hate to a DD, even with 3 of them. Then if you switched to DD stance and gear, you could easily top the chart if you were good at your job.
Take this into FFXIV: ARR and you get a whole new dynamic to it. You're not just a Paladin or DD, your EVERYTHING. You can choose to be a Tank Paladin, DD Archer, Tank GLD, Full-Mystic BLM and some sort of Forbidden SMN Brawler if you so choose. Obviously, we'd want some restriction (probably via combat skills or something) to keep it within the spirit of FF, but it would create more specialized options. Nobody likes when the game gets to: Fight X requires 3 of job A, 3 of job B, one of job C and one of job D, using strategy 34. Cookie-cutter builds, cookie-cutter party, and cookie-cutter stratgey.
Switch that to the above system. Could use a PLD single target, magic enmity building tank on the boss and a GLD AOE damage enmity building tank on the adds. Or 2 GLD damage enmity building tanks overlapping. Or the PLD and an AOE DD. Or an all-out zerg.
We don't need the trinity back, but we don't need a bunch of DD jobs who all have the Medic ability either.