Founder of another decentralized storage product here:
Decentralized storage is going to replace the cloud. We have a working platform today with thousands (and growing) of users which is cheaper, faster, and more reliable than the centralized alternative.
One of the major challenges of the cloud today is deplatforming and loss of ownership, two things that are squarely handled by decentralization. It opens the door to innovation and allows builders a lot more freedom in how they approach solving modern problems.
Decentralization also ends up being a huge element in cost reduction. Our platform uses dozens of hosts at one to store and serve data, which means any given host only needs about 95% uptime. The network is completely open and anyone with good infra can join at any time, making revenue, and competing, which drives prices down. We're currently at 1/10th of Amazon.
Decentralization also makes it possible to build apps that don't shut down. Users today have to worry about the health of a parent company when choosing a product, with many people having been displayed by a "Google RSS Reader is shutting down" message. That problem disappears with decentralized infra.
It may take some time for the rest of the world to catch on, but decentralization is just a better way to build apps.