Why in the world is the new level 50 gear give more health than the level 58 gear this isn't a queston to the wizards of the spiral but you can awnser if you like but this is a queston to kingsisle so i hope one of the porfessers post on this
Well I will post an answer anyway. As I have played several other MMO games I know why KI have dont it this way and the reason is if they gave you more life with the 58 gear as well as the critical ability and such you will get way over powered way fast and ruin the game play, which will make people to not want to play the game.
It is a give and take. If you want more health then you dont get criticals or critical resists.