It strikes me that the Shatkins trades tend to all be like this, they tend to get the guys they want and don't bother with the "filler" pieces. The Thornton trade is another one that seems the same, on paper the Jays should have gotten more, but they got what they wanted and didn't bother with that extra piece that sits in A ball unlikely to amount to anything.
I don't know if it's a sound strategy, but it seems to be their pattern since they've been here.