Honestly, PLD's weakness compared to the other tanks feels, quite frankly, unintended. This big of a gap between highest and lowest wasn't present in ShB and I see no reason to believe they'd intentionally make a wider gap in output. PLD should be even higher than it is in ex2 considering that your big damage skill is an AoE and doesn't have a drop off, but even the top 300 parses (some of which should be mega-padded, given you can potentially hit at least 3 targets with confetior) don't have a single paladin in them.