Is this any surprise? This is what happens when you have 600 people work on a game and it has to be pieced together.
I know this is going to sound empty, but like how some people said before the demo came out, don't judged anything but the controls based off of the demo. If you absolutely detest it, then chances are you may not like the full game. But in terms of areas, I feel that they must of intentionally chose some of the most basic and boring areas for each character. I could go more into detail, but that goes into spoilers.
ALSO, I should mention this.
While I didn't find this a big deal personally, I should comment on this. If you hate QTEs, like not just dislike, have a huge inner hatred for them and a moment involving them can detere you, the this game may not fit you.
Is it a QTE fest? No, but there are a good number of them. I liked them better in this game, how they have a meter with a time to complete an action or fill a bar, or something they have in this I like to call 'Interactive QTEs'. Let me explain.
This game has essentially five types of QTEs.
1.) Basic QTE, press a button/combination before time runs out. Simple, tough actually fairly rare in this game.
2.) Mash QTE. Mash the button to fill the meter before time runs out. Again, simple.
3.) Interactive QTE. These I think push the meaning of what QTE is supposed to me as you usually don't have to do these quickly, but there's moments in the game (like a moment where you use L and R alternating to crawl with your arms as something chases you) in the game that are like QTEs in gameplay... But can change based on factors. That above example your partner can snipe the monster to slow it down so you have more time to crawl away, for example.
4.) Heavy Rain QTE. Interact with your environment, These are a bit rare, but they happen a few times in Leon's campaign particularly.
5.) Non-QTE. This is when there is no button prompts, but the gameplay plays out like a QTE. I noticed that for various scenes that normally would be a cutscene full of QTEs in an older RE5 or such, they made them fully playable segments in this game, but you have to act on your feet or else you will die. These usually are chase sequences or avoiding getting hit by something that will kill you.
That might sound like a lot, but they actually sparse them out and I was surprised how many segments they made available to play. The QTEs usually appear between phases for boss battles.