Oda has no reason to hype up Lucci and Kaku like that in my opinion
See, Oda used S-Shark to body Edison, Brook and Nami (almost), now everything points out Sanji will fight him alone.
Zoro is already engaging in a 1vs1 with S-Hawk, the same should go for Luffy against S-Bear i bet.
Maybe thats when Lucci and Kaku start realizing they are too far behind