Not a nerf.

It will be able to crit, it is now going to be more potent on non-tanks, and it will be affected by buffs now etc. The only thing this does is make SCH even more technical - you can still use those "maintenance Lustrates" while clericing it up via having that cast land a tiny bit later than before, from depopping Cleric Stance after your cast, then landing that heal. Then you can resume the DPS action, albeit you will be locked for 5 more seconds into Cleric Stance in that case due to the doubletappage of before. So you will have to take that into account at times. Just makes the job a bit more technical.