I think some of the changes would have been fine on their own - I mean, yes, I miss Cleric Stance but I can understand why they removed it and would have the consolation of "I've got these other things that keep me interested", but sadly is not the care because of all the other changes too.
I honestly think cleric stance come back as high end optimization tool. My idea would be something like

Cleric Stance: Increase damage action potency by 5% and reduce healing action potency by 50%.

which would mean healer dps without cleric would work the exact same as now, and nobody but minmaxers would feel pressured to use it.

That way you add depth to gameplay to those who want it and you relieve casual players from worrying about it since the difference isnt that big.