All the tanks are scheduled for changes, and their overall intent seems to be avoiding the disparity in tank balance we've seen in Legion. It's early days, nothing is even close to being final, so obviously there's no reason to over-react to any particular specifics.
That said, I am curious about what they are trying to do with LotP and HotP. They won't heal equally, apparently? Also the healing will be based off a flat amount? The figure quoted is surely a placeholder, but any flat amount - as opposed to % of damage or % of health - seems destined to scale poorly.
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Protection:
- Shield of the Righteous: Slams the target with your shield, causing Holy damage, and reducing damage you take by 25% increases armor by 125% for 4.5 sec.
- Light of the Protector: Calls down the Light to heal you for 30% of your missing health. 1,678, increased by up to 200% based on missing health. While standing in consecration, its effects are increased by 20%.
- Hand of the Protector: Calls down the Light to heal a friendly target for 30% of the target's missing health. 1,398, increased by up to 200% based on missing health. While standing in consecration, its effects are increased by 20%.
Source: Battle for Azeroth Class Ability Changes on the Demo Floor