I have had new guttering installed - cast aluminium powder coated. One of the down sections does not correspond with the drain and was left going into the ground. When I pointed this out,  the person who did the work said he was waiting for a "shoe" to bring the down section across to the drain. Now he's fitted a bigger plastic drain cover instead. He says this is a better and more expensive solution. Is what he's done correct procedure?

Begs the question what did it look like before? Was the down pipe further over before?