I agree that this would be a powerful feature. I am currently migrating away from SugarSync (after 10+ years!) to Resilio. I think SugarSync has the advantage here. But the underlying P2P technology and architecture of Resilio I can see is better.
Ultimately, the capacity to share a link and allow others to download without needing the software could be a really good Pro or Business feature. Yet, I can see the question: "Where do we host the file?" when there really is no cloud offering.
Marty