What you see here is just an SDE, and an SDE of highlights. Do you think this is the only video they deliver for $10K? The also shoot a love story, interviews (with the couple and relatives and guests), trash the dress bit, the whole shebang. They just don't upload the whole thing online for different reasons, and I would assume that privacy of the couple being one of them.A documentary style wedding can be tremendously interesting and emotionally layered. ... I have seen a few that spent the majority of the time around interviews, understanding the origins of the relationship, and using the wedding day highights in longer form, rather than music-video timed edits.
The highlights video is just the cherry on the top for easy consuming by less intimately related people. Of course, it also sells SM to potential clients, but this is secondary methinks.