I agree for Burgess who got quite easily beaten by Sabo but Shiryu is another story; he was already very strong pre-ts ( Magellan lvl) which puts him at least on YC1 lvl, now he could have stagnated but I don't think so especially since he got a DF (doesn't matter which one).
I'd bet he is at least low top tier right now.
I'd bet he is at least low top tier right now.