I think we get the idea that garlic has a smell and don't need the green fumes to remind us. If they were a little more subtle I wouldn't mind, or if they were different than the spoiled food/low hygiene effect, but they're exactly the same and they're really unattractive. So now they're gone with this mod.
Works for all garlic: in the garden, harvested, braids, wreaths and garland. The mod doesn't change anything about garlic; it just removes the video effect of the green smoke/fumes.