No, WHM is better on that point.

Diurnal Aspected Helios is still weaker than Medica II.
Essential Dignity has somehow merged Tetragrammaton and Benediction into one skill. So yes, it's 40s, but it's only one VS Two for WHM.
Earthly Star is twice better than Assize because its Ast only oGCD aoe heal,otherwise, he must rely on Helios.

WHM has Assize, Plenary Indulgence, Medica, Cure III. Ast has Earthly Star and Helios.

If you check the toolkit correctly, what you'll notice is, Ast needeed space for its cards.
But since he also need some heals CD, they decided to make those look stronger.