Hahaha that's exactly what I've been telling myself! It was a freebie so I didn't know much about her until last week I looked up her genetics from Sensi Seeds.
OK, I looked all over, only thing I could come up with was some no name "OG Kush" that is Black Domina x OG. Not Sensi though.
BUT! I did look at some black domina grow photos, fairly narrow leaves like a sativa. Not on all plants, but most. Look like yours. This is from Sensi's site in fact:
You're absolutely right. I didn't notice in my search that it didn't return the "x og" part. After more research I believe it maybe tagged wrong. However I am one of several riu members apparently that have received it labeled the same way.
I think perhaps the black domina genetics come from Sensi seeds and is crossed with og kush from Spanish seeds. Not sure but that's what I've come up with.