Here is the remedial change to this nerf, so that Holy Paladins don't feel like they nearly lost one of their tool (our best "oh sh*t" button) when healing a tankadin :
Sanctified Light: This talent now also has a 33/66/100% chance to prevent Lay on Hands from causing Forbearance when Lay on Hands is used on others.Considering how many times LoH saved my tank (perhaps he would have survived with only a Holy Shock, but LoH sure is reassuring). I'm happy to not have to worry if I'm healing a warrior, or a paladin.
It seems that deep Holy will more and more be the biggest "toolbox" of any healing tree. With the changes to Sacred Shield and now Lay on Hands, more and more is pushed down there. It won't change much for us in term of gameplay, but I sort of feel it shows how much "problems" the uniqueness of the paladin class is giving Blizzard right now.