[bederoso]

You can blame that on the studios, they make licensing content extremely complex.

Streaming services (Amazon, Netflix, etc) would love for you to be able to access their catalog from anywhere (as you can see since Amazon allows you to watch their own content from anywhere) but are limited by contractual clauses and/or exorbitant fees, which make this sort of deal not worth it.

Studios are used to a territory-based model instead of a globalised market, since that's pretty much how cable works, so when you negotiate content with a studio the contract will tell exactly which territories you're allowed to stream the content from.