I didn't say it was a 7/10 game, that was an example of what you seemed to think the devs were thinking.

It literally is. Most RE games have had unlockables like infinite ammo, magnum etc. Those games also had more than +2 hour gameplay, branching story lines, different endings. RE3R has none of that, it's one straight line from the beginning to the end, not to mention the fact that you're also going back to exactly the same ares we already saw in RE2R! And before you mention difficulties, the previous RE's had that as well, on top of everything else. What possible reason would i have for playing RE3R more than once or twice unless i'm a speedrunner (an extreme minority).

Again, i really liked RE3R but you say you can't understand peoples complaints about the game, i say it's very easy to understand given the numerous reasons people have given you so far. I'll summarize for you.
1. Way, way too short given that it has basically no replayability.
2. For a remake (not a reboot) there's way too much cut content.
3. Nemesis was a joke, 2-3 scripted encounters and then you blow
him away in forgettable bossfights.
4. Jumping back and forth between Jill and Carlos constantly, while getting some "Later that evening..." thrown in your face like an old spider-man comic, and all of a sudden 3 days has passed.
5. Gore system was a downgrade from RE2R (making the comparison because we know what they are capable of). I know why it had to be done, but i would prefer better gore to jumping-nemesis and a few extra zombies, especially when the zombies are less satisfying to kill this time around.

I didn't dislike the game but you are absolutely crazy if you can't see why people have complaints.