@MarkWells Yes, the Hexblade patron description is overly vague/bland in Xanathar's... But that has nothing to do with the "not playtested" issue you brought up to begin with. Also, the
hexblade tag existed before 5e was even a thing, to my knowledge; it's a concept from previous editions (though I'm not very familiar with 3.5e and 4e, where it appeared), so the tag doesn't exist just because 5e frontloaded its useful features (making it a common multiclass).