Your argument is kind of invalid since you could theoretically explain away ANY move choice with "use your imagination". It makes the whole thread moot as if we accepted it as a reason for a move/pokemon combination to not be posted, we'd have NOTHING to post.
Personally with normal types like Dunsparce with wide movepools, I tend to think of normal types as having some degree of the potential for all types, as a sort of base type, and with the proper stimulation they can bring forth this hidden potential in the form of moves from other types. That explains a LOT of odd move choices for normal types, and is supported by stuff like Eevee.
The elemental attacks tend to be uninteresting really, since they are not at all consistent with the type of the user, and pretty much any design could "focus elemental energy" and shoot it...
I think the more interesting moves of this thread have more to do with the physical ones that seem physically impossible--
like Rare Candy's 15 lbs Foretress with no arms or legs using Earthquake.
I mean, if we want to get picky... I have no idea how Escavalier gets Pursuit. I mean, how does a Pokemon with no arms or legs, no levitation, no propulsion of any sort, and covered by heavy metal armor, "Pursue" anything?