I agree! The single blooms don;t look like "roses" to me. Maybe "wild roses" or "beach roses".
But I have single KO rose (RADraz) that I made a DEEP bed of good soil for ... why, I don't recall. But now it grows 5 feet every year and would probably be HUGE if I didn't prune it down most years.
As long as I think of it as a "hedge" and not a "rose bush", I like it.