The fact that they claimed glyphs are supposed to be only cosmetic, while introducing one that makes a spell flat-out better with no drawbacks, seems like a huge oversight.
The fact that wraith walk has this this drawback in the first place seems like a huge oversight. If an otherwise meaningless glyph slot is all it takes to fix the issue that's fine by me.
it would be nice if it avoided phsyical damage, but spells and etc makes sense
Not so much avoid but it would be nice if it was a DR considering it's CD, it could be like Bark Skin, 20% DR for the duration. With the talent furthering its use, just an idea.