It seems he is already starting with deviations of the story leading to a new story, he is sympathetic towards Denning and might change how things turn out.
This type of isekai is better than most ones get OP by talking to a "God", the problem doesnt really on being OP, but actually working hard for achievments and fighting something not physical.
Similar how One Punch Man handles Saitama.
@Owyn During the battle? The wind spirit seems to like playing pranks on Faceless even from Chapter 1, so he pierced a hole through her ice barrier, the wind spirit flew into it and took away her wand, breaking the magic she's casting.
I appreciate how the princess didn't have a chance to thank him or anything. It's better if she has to live a little longer feeling uncomfortable and unhappy. Maybe it'll do something to fix her personality.