Chris literally punched a boulder. Leon has never done anything that over the top.

I find your complaints to be.... very odd. For one I do not know where or how you came to the conclusion that the game has too many bright and colorful moments. The game is far darker than any of the past RE games in a decade, also if you are referring to visually.... it also uses darker over tones than other games. Barry's daughter Moira does wear a lot of make up and CGI cutscenes brings a lot of that out on some of the characters. But as for the atmosphere, setting, and yes visually.... it's one of the darkest games in the series. To be honest I didn't see any of the marketing material except for the live action trailer that was at the party because I didn't want to spoil anything. They really ramped it up to look like a side game rather than one of the most important chapters in the series imo. One that I thought was going to be "meh" turned out to be one of my all time favorites!

To bring back the feeling of survival horror they needed to limit the player more. So in addition to having less ammo and enemies not drooping any, two out of the four characters cannot use guns. At first this seems... ehhh... but then you realise that it improved the game. By simply hitting (Triangle or Y) you can switch between the partnered characters. Your partners can hold stuff for you as well with their own inventory, unfortunately you don't have much space either way since we now have the addition of crafting materials which is really cool.

The episodic thing REALLY turned me off as well. I just avoided the game until the retail release came out. I REALLY regretted this after I beat the game. I wished I was there week after week to play each chapter, and then I would buy the physical copy and play again. The episodic thing makes sense in the way they tell the story. Capcom did it as an experiment, but they also did it for plot reasons. They've been building something up for a long time and they wanted to dangle it in fans faces as long as possible and keep them guessing. This game is a must for any die-hard Resident Evil fan. It has debatably the biggest and greatest plot twist in the series. Of course there are A LOT of people that are butt hurt from the ending LOL @ THEM!  (seriously though.... the ending is amazing regardless what one you get, but it's also very tragic)

As for the choice in characters. We haven't played as Claire for a while so it was nice to have her back. They bring us up to date with her and give us a look into Terra-Save. It was fantastic to see Barry again, we learn a bit more about him and he's as bad ass as ever. History repeats itself and what happened to him in RE1 happens to him again. Only this time he is mentally prepared to tackle the challenges WITHOUT getting pissed off, oh he's pissed, but more.... disappointed. If you think he's too old to empty his magnum into the skull of the culprit.... your dead wrong! Barry's daughter Moira will grow on  you. She's definitely a punk rocker and yes... she swears a lot! One of her first lines is "What in the moist barrels of fucks is this?!" She's quite mouthy and always freaking out like a horror movie girl "Oh my god! Why are you doing this? What the fuck do you want with us?". Then there is the little girl, Natalia Korda. She might just be one of my favorite characters now. She is so fucking cute and adorable! Her best friend is a teddy bear and she's a very loving and trusting little girl who is practically "pure, innocent, and incapable of acts of evil".  She has a few very special traits about her and in many ways she's actually the MAIN  protagonist of this game. She also will undoubtedly return in the future and has been rumored in RE7. Actually the original RE7 concept art had her which can be seen here. http://i.imgur.com/cP9nc66.jpg There's no way she's a one time character, she'll be key in defeating a BIG baddie in the future. She's a birdy who needs to bite her way out of a cage! *wink wink*
As for who are the villains in this game? Nice try, play it and find out xD The MAIN antagonist is not a new villain ;P

In the end, it appears that most of your complaints are actually moot. They either aren't really related to the game OR they are a key part of the story in ways that will likely blow your mind away. Revelations 2 has the deepest and most technical story in the series to date. It may be hard to follow if you are not well versed in the Biohazard series ;P