The "Enhanced Enfeebling Magic" trait will indeed affect the enfeebling effects associated with debuffs caused by the newly adjusted spells such as the "Heavy" effect from Blizzard, "Bleed" effect from Aero, and so on.

The enfeebling effects will be affected in the following ways:
  • Enfeebling effect resistance
  • "Bleed" effect potency
In regards to the actions (like weapon skills) that have enfeebling-related effects, there is a "resist" check against your enhanced enfeebling magic, but since you receive a bonus from this, we made adjustments that allow you to land enfeebling effects even if your base enhanced enfeebling magic is low.

We'll continue to look into adjustments for the fact that there is a resist check with enhanced enfeebling magic and not magical accuracy, and its influences on effect potency and effect duration on things other than Bleed.