It may sound like a pouty teenager move to compare access to the Net to human rights.
The claim that Internet access is a basic human right relates more to restrictions and censorship by government (to which I fully agree - everyone should have unrestricted access to Internet regardless of under which oppressive regime they live) rather than a commercial company’s need to provide its employees online access from workplace (in this case, a ship that may be outside the reach of land-based networks).
However, considering how important role the Internet plays today in maintaining contact with relatives and friends, I think companies that provide it have an edge over those who think it’s not a big deal to separate people from their loved ones. I sailed through the Northern Sea Route from Alaska to Norway in 2012 with pretty much continuous Facebook access - it can’t be that difficult to arrange today, five years later. Already in the mid-1980s when I was born, it was possible for my dad to call home from abroad using the ship’s radio and some kind of interface to the phone network. 30 years later it shouldn’t be a big deal to allocate few hundred kilobits to both directions for the crew…