It is unsurprising given that the raison d'etre for Filecoin was never the demand for decentralized storage, or backup, or anything else. It was started with the sole purpose of raising money, because of the overwhelming demand for hype-driven investment opportunities that tick the typical checkboxes. And that was delivered perfectly.
I don't understand the basis for this accusation. I thought the reason for Filecoin was essentially to provide an incentive layer to run IPFS nodes. The problem with IPFS was that it largely drew from volunteer efforts and therefore if you want to actually want IPFS to be a high-performing and low cost service you need to provide a market incentive structure to run a node.