The Seal of Insight change is not intended as a Protection nerf, or to make haste less attractive. In fact, the change is being made because of a Holy concern. Although Seal of Insight does benefit from haste, the stat’s real value for Protection comes from Sanctity of Battle. Regardless, we will be making adjustments to make sure Protection doesn’t start having mana issues. Current thinking is to increase the mana gain from Guarded by the Light to 10%.
Glyph of the Battle Healer was something we had originally intended to allow Holy to adopt a “melee healer” playstyle, but as class design changes shifted Protection towards using Seal of Insight primarily, it has become both mandatory and overpowered. It’s just significantly stronger than a glyph should be. We think that the redesign will still allow it to be useful for Protection, but much more situationally, which is fine.
The Grand Crusader changes are indeed intended to make avoidance more attractive. The goal isn’t to nerf haste; as I mentioned, Sanctity of Battle is where the majority of haste’s value lies (along with other secondary benefits such as its interaction with Sacred Shield). However, we’ve seen overwhelming feedback that dodge and parry feel like wasted stats to Paladin tanks. It’s fine if you still prefer haste over avoidance, but we still intend to put avoidance on plate tanking gear, and we don’t want you to feel like those stats don’t benefit you when you get them.
We are paying careful attention to your feedback while we work through these changes. Please keep in mind that specific feedback regarding what exactly your concerns are about the changes is significantly more useful to us than sweeping generalizations. Thanks
http://us.battle.net/wow/en/forum/topic/9423553519?page=3#55