Because RE3make had a significant amount of cut content compared to the original and was disappointing. RE4 is a much longer game than 3, so the chances of stuff being cut is pretty high. RE4 is one of the best paced games ever created and each section in the game flows nicely into the next. Taking out any part will fuck with it.
Also it’s personally one of my favorite games of all time, and I don’t think it even needs a remake. I don’t mind a few minor changes but if it doesn’t stay mostly faithful to the original then I don’t see the point. I want mostly the same game with better graphics because the original is already a 10/10 game.
Some people may find that stupid because I can just play the original, but Capcom already made the first REmake, which not only retained the spirit of the original, but added even more content and improved on the original. RE2 remake cut some stuff from the original, but expanded on other sections making it on par with the original for the most part.
So I know Capcom can do it (they’re two for three so far), but I don’t want to get hyped in case it ends up being more of a RE3R situation.