Another thing: Usually I don't argue in the *many say-way*, but I do it now for one particular reason: This game is in fact a community-supported game. If the card wouldn't fit to Darkness, why aren't there any 'complaints' besides yours? -> In your first post you claimed that this card doesn't belong to darkness in any way.
I wasn't the only one surprised to see this in Darkness actually. See page 1.
But the main answer to your question leads us to a topic you brought up yourself:
Of course there is a frame for each Element. But besides the question how the borders are defined, who can say if it's problematic when they are, if so, extended/modified?
This is what it comes down to - how tight should the borders be?
And the reason most people don't seem to have a problem with this being in Darkness is that they don't want the borders as tight as I do. Witch=somehow evil=Darkness kkthxbye.
That topic would probably deserve a thread of its own and I don't want to spam this thread with rather OT-stuff. :-)