Unfortunately I'm not familiar with all the ins and outs of the Tallulah myself, but the two main lines folks run on Oceana are either far left (straight shot down, skirt the Thing, play your cards the right way and you skip across the hole), or down center, hit the rock ledge, ferry left across the face of the Thing, and slide the last few feet down into the hole. High water realease dates (Sundays), the hydraulic gets a bit sticky, and many people flip at the bottom.
As far as the face of Oceana goes, there's a rock shelf on the far right about 3/4 of the way down, and that's been popularized as a raft line (although not always a successful one, as the video here attests to!).... but you couldn't pay me to run right in either a raft or a kayak, though. The guys in the shredder were running classic center line-- so the cross-river was intentional. I don't know/ think that each feature on Oceana has a name, but looking down from the top, what you see is-- starting on the left, the Thing most of the way down, near the top is another smaller roostertail, halfway down on the center line is a rock shelf, and about halfway down on the far right is that lateral protruding shelf you referenced (connects with the center shelf, only much more pronounced and turbulent). I don't know what the shredder boys were thinking, as we didn't talk to them before their run.
Last year's footage? um.... I know what you're talking about, but I don't know who has it. I'm pretty sure it showed up in one of the Paddlesnake videos, though, so you may want to try googling it? I'm sorry I'm not more help!