For sure Magsayo's camp is already aware of those problems. If ever given a chance again to face Vargas, those problems will surely be addressed. Let's also consider the fact that Magsayo isn't really outscored in the match as he won the one judge.
Surely Magsayo has learned a thing or two about Vargas's strength and his weakness especially recently when Foster revealed how to defeat Vargas, although I'm not sure that Magsayo can use that one because they have a different fighting style and Foster is quite slick, that is why Vargas failed in his attempt. This time, Magsayo should level up his game because he will get embarrassed for sure if he didn't learn something from their first encounter.
He need to adjust and learn from his past mistake, adding more on his stamina so he can last long with good breathing, unlike with that first encounter where he didn't manage to win the fight, but for now better to focus with his upcoming fight and think about Vargas after he succeed with these opportunities to come back.
Let see if he will win and start preparing for the title fight if, in case Vargas will negotiate right after Magsayo wins his fight.
They will eventually get to that point if ever Magsayo will have a pretty performance and defeat Figueroa. The winner of this fight will determine who will challenge Vargas's belt and if ever he won't negotiate, there is a strong chance that the WBC might participate to get this bout done as I think Vargas is almost due for a mandatory fight. For now, let's just see first how will Magsayo play his card against Figueroa and wait for the outcome.