When compared to the other tanking 4 set bonuses, ours seems to be lacking. My empathy goes out to Druid tanks as well, because their bonus does not even compare to what DK's and Warriors are getting. Here's the run down of the T8 4 set bonuses:
Paladin: Shield of Righteousness now increases your block value by 225 for that attack and for 3 sec's after.
Druid: Increases the duration of Savage Roar and Survival Instinct by 8 seconds.
DK: Anti-Magic Shell also grants you 10% reduction to physical damage taken.
Warrior: Shield Block also grants you 20% reduction to magical damage taken.
Any other tanking paladins out there feel like they got shafted on their 4 set bonus?