As I entered the key when making this giveaway, I am pretty sure I know that the key was there...
You might want to wait and see what the one who wins says, if he confirms or not, but I promise that I triple checked that it was Steam key and not Origin key.

Edit: A friend of mine actually send me link to back up what I say: http://indiegamebundle.wikia.com/wiki/The_Humble_Origin_Bundle
Your comment is untrue, please check facts better next time before saying I lie, I don't like it.
The key was send to the winner through Steamgifts, it should be confirmed soon I guess...

Edit2: And actually your information is about the latest humble origin bundle, number 2 actually.
Your statement isn't about the humble origin bundle, it is about the humble origin bundle #2, they are 2 completely different bundles.