wow I didn't know that bards can't use 2hb. This really makes no sense at all now, what's the point of letting one class without the skill use while not letting the other class without the skill use it? I could understand if it would make more sense from a roleplaying standpoint (like letting necros use some scythes that are slashing) but I doubt that anyone thinks of a shovel as a weapon that a bard would be that likely to wield. I think verant just didn't think this through enough but it doesn't really matter since there's no reason a rogue or a bard should use this except for laughs.
In a roleplaying standpoint the bard could be played as a jester and would increase the chances of using this "Barn Tool" (Barn tool, coming from another post)