It seems like to you a 20% difference in the required amount of healing received would be "negligible" then. A multi-roll table actually FURTHER puts the paladin ahead in terms of mitigation than the WAR than any assumed single roll table, not the other way around.
And whether or not everything was rendered "moot" by showing that it's a multi-roll table has nothing to do with whether or not the difference between WAR and PLD is negligible in terms of survivability.
I have no idea how you can sit there and say it's a negligible difference. It means you must be 100% oblivious to what the multi-roll table actually means. There is no (not a negligible) difference in the parry rate. But that only has a minor impact on the amount of incoming damage. Parry is going to work out to ~5% damage reduction from incoming attacks. Block also works out between ~4-5% damage reduction from incoming attacks. Already paladin has virtually twice the mitigation as WAR from passive effects alone.
Then when you add in the fact that the PLD will suffer fewer crits, the gap widens even further. Then when you add in the ~5% reduction from RoH it widens even further.
Just counting passive effects after armor you are looking at a WAR taking ~95% of incoming damage, and a WAR taking ~85% incoming damage (.95 * .95 * .95 * .99, assuming the reduction in crits only works out to ~1% reduced incoming damage). (note that even if it were single roll the difference would have been negligible at (1-.05+.05) * .95 = 85.5%)
Do you really think that is a "negligible"?
Then you add in the fact that the WAR required 9% more healing baseline in general. So a WAR suffering 1000 DPS (after armor, before parry), they will need ~950 HPS after parry, and with the Wrath bonus that will be ~826 "raw" hps (assuming you are sitting on Wrath stacks). For a PLD suffering 1000 DPS (also after armor, before parry, Rage of Halone, or block), they will require ~680 heals per second.
How can you call that a "negligible" difference? That's over 21% more healing required! And that's without even comparing Cooldowns which the Paladin wins with hands down.