Me too. This was alright if it's a teaser or an "summarize" trailer, but not as the only trailer during TGS (although, to be fair, they didn't (afaik) promise any kind of big coverage this TGS, so it wouldn't be too bad (just a bit dissapointing, I guess) and there's still pleno of time).
They still have one big trailer in store according to what was said during GC (and I mean, it's obvious they have one at least!). I guess they could show it in their own conference whether is a longer version of this one or a whole new trailer all together.
We still have Paris Games Week (if they want a big showing every time there's an event). A launch trailer when we're much close to the release date is almost guaranteed too, I'd say. So I can see two story-heavy trailers before the game's launch.