I liked it more too the second time. I think it’s just not their best effort at a trailer and they’re also trying to hide a lot of stuff. For example Ronan is in there, but just briefly from the back.
I think I’m also probably a bit more excited than some because I’ve watched all of Agents of S.H.I.E.L.D. and knowing Coulson is in this has me really excited to see if they’re willing to tie it all together even more. I expect easter eggs @WhollySchmidt and @Scott_Lufkin! I mean, we might even find out where that Kree body came from!