While the term agile is often used with fast development and deployment, speed without sustainability is often just leads to unnecessary churn. When you use agile methods and you’re still having too much by having too much work to redevelop and redeploy, then there’s a good change, you’re doing it incorrectly.
The reason Data Vault 2.0 is a better approach is because it has Disciplined Agile Deliveries (DAD) baked in. This is a much better and more pragmatic approach to agile projects.
I wrote in more detail on this topic here: