That's true. I guess this is more to do with how much of the film was locked down before editing. Some films only take shape during editing, some have very tight scripts where pretty much everything makes it to the final cut. Rogue One had substantial re-shoots; so it's no surprise that footage seen in trailers didn't make it to the final cut. I guess David wiping out the citadel is a key scene that Scott, at one point, believed showed too much? It's obviously difficult for us to assess merits without the context... but if they are using it at events such as this, it suggests to me that it's in the film. It would be rare to find an example of a full scene being used for promotional material, and then for it to be exorcised completely.