You remind me of that anecdote by, I think, Tyson (the astrophysicist), who gave an example of a person going to the ocean shore with a cup, poring some ocean w

You remind me of that anecdote by, I think, Tyson (the astrophysicist), who gave an example of a person going to the ocean shore with a cup, poring some ocean water into it and swiftly concluding that there aren't any whales in the ocean based on what they saw in the cup. I mean, you are in no position to judge about good editors on Earth... you haven't worked with good editors yet. This is evidenced by your gripes about editing large files. Emacs may be configured to be used as a pager for Christ's sake! It can work with whatever file size you have. If you don't know how to do that, that's a you problem, not the editor's problem...