I don't think any of the player's moveset should be "allowed to be difficult".
Yeah, I think certain moves can be challenging to do/use, so long as not all moves are difficult. Throwing an axe mid-dash to alter your trajectory and squeeze through a tight space should be tough. Just hitting the first enemy you come across shouldn't be. Like I said, I planned for axe throwing to be secondary in general as an element of combat, but then I didn't implement the regular axe attack (I treated the axe tossing as movement, which I worked on and tweaked first, so while hitting an enemy with the axe isn't great, movement with the axe throw is highly consistent in the air).
I'll definitely be adding music and SFX to the prototype (as well as improving the axe throwing) after the jam ends, but for now it'd be bad faith to add it in ^^; I had plans but didn't budget my time appropriately for it.