I bet the editor just felt it was better to cut around for the sizzle reel. For the tip-over, I wonder if the booster went kaboom when it hit the water and they want to emphasize the success rather than what could be perceived as a failure. So you're right, maybe brand image. Maybe one day they'll finally release the footage!

I think they were more open when they were developing Falcon 9. Based on all these amazing test flights, the engineers still have that magic SpaceX culture, but perhaps the media department has become more corporate.