Core Attack Conversion Skills

Is it intended that you can spec into all of these? The aura skills that let you convert 100% of your damage into certain element are mutually exclusive (for example in storm you can't convert to lightning and cold) but in core you can select up to 5.

I have no clue what damage type I'm doing but every hit has a chance to apply burn, bleed, plague, shock and chill.

Surely this isn't intended right?