I can’t answer this with a simple yes or no. Israel Adesanya would probably be the best contender for the belt if he wins against Anderson Silva. However, I don’t think a victory over the 2019 version of Silva warrants that opportunity in and of itself. Instead, this seems to be more of a case of circumstances playing in Adesanya’s favor.
Looking at the list of other potential contenders, the options seem strong on first glance. But a deeper look reveals just how little else there is at 185. Former champion Luke Rockhold appears to be leaving the middleweight division.