Here's my take on all this. The way Blizzard has designed the new talent tree is that it's doing it's job correctly if you are debating which talent helps you the most. It however is not doing so if the player is asking themselves, "which talent hurts me the least".
Normally, the procedure goes like this. For any spec or build, there should be at least 2 talents that make the player debate with themselves. Obviously, with so many variables every patch including attribute scaling, boss mechanics, and new gear.... This is really hard to get just right.
But that's why we pay them. To do their jobs.
Here's my solution to one of the proposed reasons behind the nerf.
"Blizzard didn't intent for us to blanket EF at lower HP".
Here's the 5.3 EF specs:
"heals them for 5239 to 5837 (+ 49% of SpellPower) and an additional 508 (+ 5.85% of SpellPower) every 3 sec for 30 sec. Healing increased per charge of Holy Power."
Here's the solution,
"heals them for 4715 to 5253 (+34%=1 charge of SpellPower, +39%=2 charge of SpellPower, +44%=3 charge of SpellPower) and an additional 508 (+10% of SpellPower used for initial heal) every 3 sec for 30 sec. Healing increased per charge of Holy Power."
The end result? For 3 HP EFs, there is a 10% reduction in base heal, 10% reduction is sp scaling, and the HoT now scales it's SP bonus with the SP bonus used on the base heal. The same is done to 1 charge and 2 charges but a bit more severely. it's a 20% nerf to 2 HP and a 30% nerf to 1 HP(not the base heal, but it's scaling with SP).
To make this more interesting, with the SP nerf to EF, then a SP boost to SS would make them competitive again(assuming the make the 2 minute proc shorter). I think a 1 minute proc cd with the hp required raised to 35% would make it a bit more appealing. 35% is what is required to generate second wind for warriors so it seems logical. With a higher trigger health, and shorter cooldown, you would see it pop a lot more often in important situations.
If the main issue is not blanketing, but it's our dependence on EF and mastery as the standard issue picks, I have another solution. Along with the previous nerf, and that HoTs no longer generate absorption, simply increase the amount of ticks but for less, and add a major glyph that "Judgement now has a 25% chance to generate one Holy Power, But Crusader Strike no longer generates any". Then have Seal of Insight's spell haste apply to judgement.
Now with sanctity of Battle, Insight, and a glyph effecting judgement, Haste seems a lot more valuable. The final touch would be to, instead of having SS reduced to 1 minute, keep it at 2 and let it be reduced by haste.(with the health still being raised to 35%)
Note that I'm just rambling about a solution to a problem that may or may not even be the reason.