True, seeing Vader's landing shuttle isn't truly needed... but still I was thinking that if handled well (similar to keeping in and adding more AT-STs to the battle), it would work well and give the audience a chance to see certain things. In this case, we'd get a good first view of his personal shuttle (but we wouldn't have to see him), along with troopers disembarking a nearby walker (this, especially, I'd like to see on-screen how it's done)... I don't think any of this would hinder the story at all (it would only last around 5 seconds too); if done in a tactful way, this could be another one of those outstanding additions that Ady could seamlessly fit in.

If not, that's okay. It was an interesting possibility :)