New to healing in FFXIV, looking for WHM help

[Sylvain]

cure 1 is only good if your really low on mp but cure 2 is still a better gcd usage on healing (non HoT). I got nothing to say

That's a good way to go

As a WHM you shouldn't struggle with mp but if you just died, have no access to Thin Air, Lucid Dream, Assize still on CD and well, the tank needs healing.
Better do CureI than CureII, you'll get more heal/mp

You can also use CureI to top off a dps missing a few hp (assuming that hp loss would be enough make the next AoE lethal)

So, in an ideal scenario you do not want to use CureI, but scenario are not always (if ever in pug) ideal, so obviously, you need to adapt.