Exactly. New games do not change old games.
Case in point: I am a huge Lufia fan. I had always dreamt of what Square could do with Lufia, since I knew they had control over Taito, and I thought they'd do a great job (I was a younger me who was rather naive, so sue me). When it was announced that Square would remake Lufia II, I was overjoyed!!
In the end, they did many, many changes in the wrong direction. Gameplay is weak, storyline became weaker than the original and they removed one cool element, which was the huge amount of subplots during the original game. You would visit 20+ different towns, each with its own subplot, sometimes even two or three! And the remake was lowered to 5 towns and all the story happens there (and the dungeons of course). Besides, they did not release it in Europe.
Was it a disappointment? HELL YES IT WAS. Did it change anything about the original game? Not at all. It's still one of my favourite games + huge nostalgia (first RPG game for me). So... "if you don't like it, don't buy it". Or, in a more generic way, "live and let live".
I know it sounded harsh; it was not my intention. It's just that reading "ohnoesnewgamewillwuintheexperience" gets tiring, at some point.
Oh, Lufia remake on the DS did have one good thing. The remastered OST
(still prefer the original but hey).