Negative Spoilers

[Froge]

I was recently watching one of the LP'ers I was subscribed, HCBailly, who is a prominently player of JRPGs. I noticed that he has a rather annoying habit of revealing what I consider to be "negative spoilers" - i.e. what's not going be in the game's story, such as that there won't be time travel, the main character won't die, etc.

Should these "negative" spoilers be considered actual spoilers, since they reduce the possibilities that you (the player or the audience) expect to be in the story?