Yep, at my best I was sub-13 with a 7s PB, and I don't know full OLL so I consider myself 2.5-3LLL. I'm not particularly efficient or have high TPS so I think it's entirely possible
In theory, absolutely possible. Anyone sub-10 2LLL would probably be like sub-12 if they switched to 3LLL, and the record could've been an OLL skip, or even full LL skip.
In practice, really weird that someone dedicated enough to get that fast wouldn't just learn full OLL. But maybe the person just hates learning algorithms and has focused on building really strong F2L intuition instead.
Cube solved in 17 s…
… with LBL method, cross on top!
Let me die.
[EDIT]
I watched it several more times and, this time is fake.
Video was accelerated. You can see it on his left arm, and the black rectangle was placed there to hide the head of the woman who would have moved too quickly otherwise.
Maybe he also knew scramble and memorize some moves. I'm disappointed 😞
Sorry.