This sounds like a case of bad luck more than anything. Lae'zel has, in my experience, had no trouble hitting enemies, and there's always an alternative route to progress in the story. DnD is about flexible thinking, and finding alternative options when things (inevitably) go awry.
You're making my point for me. Negative die rolls soft lock the normal path a player would prefer to take. By the way, alternative options aare NOT exempt from negative die rolls soft locking those paths either.
