Yes, quite. With the DSR, you're not limited to returning faulty goods. In fact, if the goods were faulty, you wouldn't really need the DSR. That's not at all what the DSR was intended for, though it adds to your rights and if goods were faulty, your DSR rights improve a little bit. But the DSR is actually deliberately aimed mainly at exactly your kind of situation, i.e. where goods aren't faulty.
Nonetheless, it does impose a cost on retailers through no fault of their own. I can see why many don't like it, but what it comes down to is that it's a fact of life and part of the cost base for being a distance seller, and they'll either have to comply with it, or risk ending up in court.