A New Hope is my second favorite title of all the movies behind RotJ, but I do prefer the original crawl with no subtitle for the same reasons you mentioned differentiating the saga from standalone. Still, even as a kid before there were any prequels I found it kind of thrilling that the starting point was Episode IV: A New Hope, it was a very small thing that added to the lived in quality of the universe and it made a weird sort of sense, it did feel like the middle of something larger. Other changes I can forgive or tolerate, but the subtitle I genuinely approve of, simple and inspiring.