Spence leaps to P4P status after beating Page. Page was heavy handed and had a big left hook, but Spence is much more polished and skilled and would probably break him down and stop him in the mid to late rounds.
Spence is too skillful and fundamentally sound for Page, who was basically nothing more than a powerful left hook. Plus, his chin wasn't all that. Spence knocks him out mid rounds.
I wouldn't say Page sucked necessarily but yeah he wasn't particularly good ... Spence gets him out eventually (as in stops/KOs him, not frees him from prison)