I would say, yes. VERY much of a stretch. The Phantom Menace & Attack of The Clones, mediocre? Maybe. Some of the worst films ever made? Far from it, and ROTS is just out of the equation, period. There were much worse films during the period of 1999-2005, and regardless of the quality of the prequels themselves, there's one thing that matters. I had fun watching them. I enjoyed them, and ROTS is my 3rd favorite film in the saga, right before ESB and ROTJ. So, is it truly a stretch to call the PT some of the worst films ever made, or is it cold, hardened fact that cannot be denied?