I see what you’re saying, but I’m still unconvinced. As in, save for a few very rare and exceptional circumstances (for example, when I have the bomb on Nymue), I honestly don’t think that having more range would increase my damage by that much. And though you are right in that the best players will exploit all the advantages they can get, I don’t see them gaining a lot of damage from just a range increase.
If someone can prove me wrong, I’ll gladly concede.