The biggest challenge
is building a business model that can work with the very limited amount of money people living in the Amazon rain forest have to spend on internet. They may not be a good target market for companies to be interested in sponsoring the tech to make it work.
It's a lot like Starlink being sold to investors as a way to connect the millions of people that don't have access to the internet. At this point, we are talking about people in remote villages. Limited road access. Nomadic tribes. ie, people that don't participate in the greater world economy. I'm sure they would find it interesting. At least those with some tech savvy and literacy skills, but they won't be shopping through Amazon or ordering up food deliveries from M&S. It may also be tough for them to pay a monthly access bill and purchase the required hardware which will always be shipped with the wrong plug (or alligator clips for 3rd world connections). It will be interesting to see if the satellites will report back where they are beaming signals down to so Netflix can blackout anybody not paying in same currency as the region nominally trades in. Nevermind those places where payment is preferred in anything but the national coin.