Hrm, can't he confirm a j.B off of you getting hit by the 5D into another sweep knockdown? It felt like the same setup, but I don't know much about this matchup (Most of the Yu's I've played are really bad). The only thing that kind of concerned me was that there doesn't seem to be holes in his setup strings unless he tries very specific things (All out attack, Any version of Lion, evasive action/frametrap 5DD). Other than that, I felt like I was mostly just stuck blocking and looking to tech throws.
I found that the only redeeming part of this matchup is that we have some really great antiair options against him. Starting up 2B when he's used up all of his air options/committed to an air normal in your headspace completely and utterly ruins his jump in options. None of his hitboxes are disjointed enough to tag you from outside of 2B range (Cross up or non, as his j.B is about the same spacing as our 2B, and I was finding that 2B pretty much goes straight through it). I'm not entirely sure about this, but I think 2B might also stuff all versions of Lion. I know I was catching the A Lion with it at least (Not sure about the B or SB versions). 2C did work pretty well, but I'm not sure if it's worth it in this matchup because Asterios is way more useful as a projectile barrier >.>
Kinda got bodied after he stopped taking to the air though - Couldn't figure out how to deal with the ground to ground when his 5B comes out almost as fast as our 5A and has about twice the reach. (And can be cancelled into a lion or zio on block)
One thing I didn't try and should have is Air to Ground though. Jumping in feels bad, but avoiding ground approaches at superjump height seems fairly decent. He doesn't really seem to have any outstanding air to airs (EDIT: If you're above him, that is) other than his BD (Which as we know is very unsafe on block).