People are complaining about the newest Call of duty being set in space. ...It's not like we haven't had any good scifi shooters have we? I mean Halo's were liked, Doom and Quake had a few good games, Marathon series, Prey and so on. I mean, it's not guaranteed that the game is good, the last few in the series have not exactly been inspiring, but damning it based on a single trailer is a bit silly.
Similarly, everyone getting so excited over Battlefield 1 being set in WW1 even though all we have so far is a trailer is silly. Yes, this is probably the third shooter based on WW1 (Iron Storm was an alternate history where WW1 lasted for decades and the game was just bad, Verdun is trying to be simulationist and has mainly good reviews but the studio is small and the game is not well known.) so at least it's a reasonably fresh idea but there is still a chance that they ruin the game somehow.