Similar to how if you were to use AWS S3, the same URL can be used for when new versions of the file are added, so it's always kept up to date. Currently, in Builder's asset manager, you can't simply replace assets, like images. You have to upload an entirely new one.
This request was asked as a question by someone else on the Builder forum, previously: https://forum.builder.io/t/uploaded-images-assets/1908/2.
We can't use it without this too. This is why we need a single source of truth so we can update assets and not have to update every URL wherever it's found.
This would be huge for us and frankly we can't use builder as a CDN without this feature.