Healer Unhappiness exists on the Jap Healing Forums as well.

[YusiKha]

Were it that weak we'd just clip a Glare, kinda like the old SCH rule that unless you were double weaving Ruin II was dead to you. WHM basically never has to double weave so an instant that weak would serve no purpose.

By less than 100, they meant >100 and the blood lily contribution.
Afflatus Misery is 900/4 potency per GCD spent, so if a dps Afflatus skill has only 100 potency, it would break even with Glare. (900+3x100)/4 = 300