Why standardise though? Why not have a healer with a deep DPS kit, a healer with more and varied support, a simple and straightforward healer, a complex healer with strong kit interactions (inc. its DPS) ... make healing appeal to a broad range of people, not just those who like the 'standard'.
Divine Seal was available at level 50 (or lower?), as was Protect (which could have been reworked). Having those taken away and only given back at level cap is horrid.