GCS is correct. You still have the disadvantage, you just don’t get the full point cost because something lets you offset most of the downsides.
A good way to look at it is the most common mitagator in any setting: glasses. A character wearing glasses still has Nearsighted or Farsighted, the glasses don’t change that. But what they do do, is allow the person wearing them to avoid the downsides of that disadvantage.
GCS is correct. You still have the disadvantage, you just don’t get the full point cost because something lets you offset most of the downsides.
A good way to look at it is the most common mitagator in any setting: glasses. A character wearing glasses still has Nearsighted or Farsighted, the glasses don’t change that. But what they do do, is allow the person wearing them to avoid the downsides of that disadvantage.