It is very cringe to quote yourself, but I wanted to add this:
How about giving a healing rotation on par with a DPS rotation in terms of depth? Press 1 button which will make another in a combo light up, that could be a stronger heal with an attack added when combo-ed right and could end with another choice of 2 buttons, a strong heal with either a buff or a debuff depending on the button pressed. Making the kit more engaging while adding some decision-making could lead to interesting gameplay and solve a lot of the issues. All the while doing a lot of healing and sprinkling some nice effects onto it!
Originally, I thought this was how SGE would play. A bit disappointed when I picked it up and saw it was more of the same...