No, you just can get the data from EVENT_EFFECT_CHANGED or EVENT_COMBAT_EVENT and they do not provide any info about aoe or not. There is no api for this afaik.
https://wiki.esoui.com/Events#Combat
You coudl just check the buff type or other types that the events provide AND compare abilityIds/buffIds to a list of pre defined ones, like srendar and other addons do.
Much work to keep them updated after changes/additions...