Some people are mad about the Dizzying Swing nerf, so they're trying to make a false equivalency by comparing two abilities that have a damage component and a CC attached, as though they were actually really similar.
Frankly, after the nerfs to Shalks and Crystal Fragments, I'm surprised it took this long to give Dizzying Swing the same treatment...and it didn't really get nerfed as badly, since it's still possible to stun when combo'd with a partially charged heavy attack, which can't be done with the two aforementioned Magicka abilities.