Thinking about this - it's not THAT hard to actually use the 5e skills in say the exploration pillar - in a more active player influenced (narrative controlled) way.you, as a player, control thurgon, everything thurgon does is because you declare it, functionally You. Are. Thurgon. every time you quibble over 'well actually me and my character are separate entities' is sidestepping answering the question you were actually asked
in DnD, you roll to see how well your character attacks the enemy, the dice represent your skill in taking an action but the action requires the orc to be there in the first place, you cannot say 'i desire to attack the orc' in an empty hall, roll a success, and an orc manifests out of the air for them to then hit because they rolled well, in DnD the act of looking for spellbooks is an entirely separate matter from if the spellbooks are actually in that location, because the world exists as more than raw grey potential, the rules of BW permits everyone and anyone who can look for the books the ability to make those books appear if they suceed on a dice roll,
Traditional:
Player: Are there orcs in these hills?
DM: you're not sure, roll a knowledge history check for me.
Player: Elq has a +5 (rolls) - 18.
DM: You're fairly certain there are no orcs in these hills
Alternative with more player narrative control:
Player: I think there are orcs in these hills!
DM: hmm, roll a knowledge history check for me.
Player: Elq has a +5 (rolls) - 18.
DM: Yep, there are definitely orc tribes in these hills, let's expand on that...
Now 5e is not REALLY geared for that, quite a few games have already thought of good mechanics, (DCs would have to be thought of etc.) but it would be an interesting experiment. Some players might like it. And, as evidenced by this thread, some would hate it with a passion.