He is this era's strongest Marine's equal.
Don't get me wrong the Admiral title holds a lot of weight. Evidently more weight than Loki in Shanks' case, or even defeating Kaidou in Luffy's case. But this gives life to the age old narrative that the new Admiral duo is a notch below the C3.
I always thought not being linked to Akainu's power lvl may come back to bite them. But atleast Oda has reinforced how powerful the title of Admiral is by itself, where defeating a nameless Admiral is supposed to be a bigger deal than Loki or even more hype than defeating Kaidou. Chinjao's statement just got certified again.