I think Caleb Plant losing to Canelo plays a big reason why others are eyeing Benavidez to win in this match. Can't blame them though. However, if we look at the technical side, Benavidez is not on the same tier as Canelo "for now" that's why I'm seeing this fight won't be a landslide win to either Benavidez or Plant.
WBA (Regular) Super middleweight champion David Morrell Jr., who was waiting on the winner of this fight between Benavidez and Plant, gives a 50-50 prediction on this fight since both boxers do have their own advantages. The turning point of this match will now depend on how these boxers will execute successfully their respective strategies.
Probably because we don't want to see Canelo fight Plant a second time around, and probably Canelo is not going to be interested as well. So it's better for Benavidez to win in this fight so that he will be the next in line for Canelo's belt at 168 lbs.
Or how either will execute their game plan and if that doesn't work, adjust in the fight itself. And usually those that can adjust will win in any fight. So I do agree that it still 50/50 at this point as bot has strong side and good team behind to formulate strategies and what to in the middle of the fight itself.