the idea that mail provides any functional redundancy over the internet is based on a scenario in which the government censors some kind of content that a perso

the idea that mail provides any functional redundancy over the internet is based on a scenario in which the government censors some kind of content that a person requested? That person would then ostensibly, through a subsidized mail service, be able to send the original purveyor of that content a letter, requesting a facsimile of the webpage they were requesting, and then that provider would send such a facsimile to the requester. Or perhaps they mean some sort of other redundancy?