It's the old-age disconnect between the marketing, the claims and the actual functionality.

For example, the title claims that it's a file explorer. However, someone in the comments shows that it fails at actually exploring files. Something which even an alpha project would not fail to do considering the claim.

Only when you read through the marketing copy and the comments, you realise that it's a hybrid cloud/local/cross-device Dropbox that creates a view of your files across systems/locations, and only once it's done that, only then can it do the actual file exploring. At least for now.