On page 8 they describe a feature of "Instant Perfect Forward Secrecy (IPFS)".  I'm not a cryptographer and haven't learned about cryptographic primitives since before forward secrecy was a thing, but I don't get any website for this and it has a misleading acronym, so I'm wondering if they made it up to align with the popularity of the IPFS project to readers.  Such behavior is similar to the claim of being endorsed by the CCC and EFF, or the claims for all the developers and projects being suspicious after one suspicious thing happened.