If Paladin has any more damage reduction it will simply be immune to all physical damage.
In it's current state, a Paladin doesn't need a dedicated healer in a tank and spank party (before 1.21a) as long as they can get the MP bard song. Meaning, one more dd to the party (war maybe:P).
With the current changes, Pld should only need one healer when fighting bosses. Old school 11 style one Whm for the party should be possible.
I never understood the GIVE ME MORE HP idea. This was dis-proven in 11, and it still seems to hold no water in 14. With Paladin's defense, it does not take enough damage to warrant a need to have more HP. While HP does definitely influence Spirits Within, and the right set of gear will create a happy balance between HP and defense, Paladins are now nearly invincible for 50% of any given fight (obviously mage jobs will hurt pld something fierce). But, 20 seconds of no physical damage combined with Aegis Boon, a decent evasion, and block rate, any paladin should take less then 50% the damage a war would take.
It's just another one of those more DPS means better party situations. Which will lead to people going all Zerg against mobs, and if a tank can't hold hate, then they are not a good tank.
The build and idea was for party members to work together, and find a balance between hate and damage. I could tank as pld against ifrit (obviously before 1.21a) and get a speed run. Simply put, there is no reason, need or purpose to kill faster than that, other than "My DPS is highest".
I understand people want to do more damage and do it faster, but, the reason for enmity is to have that mentality tempered with skill.
Paladin could hold hate pre update, and now that they should be taking significantly less damage, they should now be able to hold hate far better than a war. The significance being, do you want a Whm spamming cures, or nuking with the party.
In every AV/CC run I have done we lose two party members to healing jobs, that their sole purpose in the party is to spam cures on the tank, and people talk about peaking damage output that way... Seems a little counter-productive to me... But, I am probably just naive, since, I haven't see what happens with a paladin tank (no one tries it, because Pld sucks is the common conception).