I understand your point here. While I'd prefer a different game experience for myself, if it's a graphical remake, then you can still talk to other people about the same game where as you can't very well have a conversation of the Final Fantasy 7 remake unless you yourself have actually played it because of how different the game can be at times. Even when it's not different, the amount of dialogue for the same events make it much different as you have far more characterization with characters that were only mildly important in the original.
Final Fantasy 7 isn't my favorite in the series, but even so I still hold the game in high regard and still one of my favorite cast of characters in an RPG. Before playing the remake though, I had the same opinion. All I wanted was a game that played identical to Final Fantasy 7 with better graphics, a remake much like Crash Bandicoot or Spyro the Dragoon where it's really just the same game. Square Enix gave me a remake that I prefer over the original despite, now 11 hours in, can confirm that I don't like it as much as the original. It's still a completely different gameplay experience with a cast of characters that I really like who have far more depth and back story than the original game has ever offered in the period of time you spend with them within Midgar.
The way Square Enix is doing it with multiple parts also bothered me at first, but again, I didn't realize the amount of effort they were going to actually put into the game, nor the quality of the game, being Square Enix afterall. A lot of people say that it's not "a full game" not just the full game, but a full game and that they're splitting it into parts just to screw people over. But just the amount I've played of it right now and I can easily say without a doubt that it's a full game even if you take the main story alone. On top of being a full game, with these multiple parts in the remake, this means that we'll have more time to spend with these characters, we'll have more time to spend in this world, and it extends the length of Final Fantasy 7 to a much larger experience. By much larger experience, I'm talking about a much larger "quality experience" where you are traversing through what's essentially a 30 hour experience or longer for just Midgar, and again, that's the main story, not the side content which isn't as good as the main story content(but honestly, in this case the side content isn't as bad as what you'd see in a Ubisoft game or even Square Enix's own Final Fantasy 15, there's only a few quests in the first town and each one of them has you going to a sort of mini dungeon within the area that you otherwise never need to go to again.)
This is similar to Ys Oath in Felghana. While there's already an Ys3 graphical remake in Japan, I can't imagine anyone actually asking for it. So when Ys Oath in Felghana was announced as another Ys3 remake, it's a pleasant surpise as it takes what's essentially a really bad game and turned it into what was actually once the best game in the franchise. It took what was a good concept and turned it into a great game with more story and depth in the game than the oriignal could ever hope for.