A little late, but I think the discussion here is also relevant:
The best course of action seemed to give a better error message. I will probably work on such enhancement next week. I think it is reasonable that exist a convention that a vector is always assumed to be a column (in the case we need to decide to treat it as a row or as a column) but at the same time there is an specific type to represent a column of an N-dimensional array that is different from the just-a-single-dimension-aware-vector. I just think that, in the context of some matrix operations (eachrow in the link above), some methods would make more sense to return a matrix with some unitary dimensions instead following the pattern of always dropping unitary dimensions from methods returns.