As I mentioned upthread, I dont like GotG 1 & 2 at all - they're emotionally manipulative rubbish - but they are both visually striking by the standards of the MCU (and modern genre films in general), and led by a likeable central cast.
This SS trailer makes the film look hideous, and its cast, obnoxious. I certainly dont think it helps that it showed so many characters, and they all just seemed like juvenile idiots.
I would put money on the trailer being misdirection and the majority of the cast dying in the first ten minutes. I'm assuming that Idris Elba and John Cena's interplay will be the heart of the film.
As you say, the two GotG films have a lot of schmaltzy emotion (I'm with you on the first film, but the second one worked for me). I don't see that changing here. As Mister Six said, the name Ratcatcher 2 is a bit of a clue that there'll be a tearjerker back story there.
It will be GotG meets Deadpool, and received as well as those (or as badly, if you hated them).
I see what you mean about the visuals as compared to GotG, but that's at least partly intentional, surely - the costumes are clear piss takes of their comic book designs. GotG went for a corny Flash Gordon look but had the benefit of taking place on alien planets, so not looking as garish as this does.
