Dragging wires is a natural part of Blueprint workflow Sometimes when i want to quickly drag wire off an output, or connect it to an input, i just miss - and insted of connecting wire to input, Blueprint thinks that i want to place a new node.
How about inserting some little magnet inside every input? It would help snapping wire when it’s really close. This snapping would not be visible when dragging a wire (imho it would just annoy like that), but only when releasing it. Well, actually the image above is enough to illustrate this little idea