That'll forever be the problem with this game's writing, we're constantly told that power fantasy is stupid and awful except that the writers can't write anything but yet insist the game is about everyone else.
We're told that our PC is nothing special, a complete 'who?' person but we're one that's singled out for every event. We don't have anything special but we're the ones singled out by a demon for our soul, we're told we're not powerful and that everyone in our party is much stronger, faster, smarter yet our character constantly defeats higher beings even without those same characters who at the end of the day, defer to us and follow us no matter what. We're told that anybody could be doing what we're doing and yet nobody does; a prime example being the three problems plaguing the town at the start of the game, a complete village of people full of adventurers is being threatened and suppressed by monsters and Orcs, everyone knows the solution but no one takes up the mantle? I guess you could go back to the start of the game and claim the opening scene with Cait just shows everyone doesn't care but that just furthers the problems as well as the PC power fantasy because even if Garth (who the writers claim is much stronger than us if he was serious) goes he clearly loses based on the fact that neither Cait nor him make it back.
The PC's complete success is attributed to a smidgen of elbow grease in world that really doesn't seem to care that's all going to shit.
At the end of the day the only time when the PC isn't going through a blatant power fantasy, where we're doing things no one else can and fucking things no one else will, is when the writers jarringly, unsubtly, and frankly insultingly try to hard pivot focus the story or power fantasy onto their super special OC; a being that can totally do anything we can do but better or do something that no one else can however, just can't be bothered to solve any problems but their own and thus drag the PC on their silly quest because their problems matter more because they're favoured and written by the exact same people who claim that power fantasy is bad.
tl;dr: Writers claim power fantasy is bad but have never written anything else so they end up writing it anyway and for the sake of 'variety' they try to make it about their OCs rather than the PC and that makes it totally okay and not bad.
