I dont consider the EU, so the Holonet doesn't exist for me.
Luke was on a backwater planet. He learned what local gossips said, and what his Uncle and Aunt told him.
I dont want to see these issues addressed because if there's a new EU, I'd hope it was more about fun stories, not dealing with continuity issues.
Seriously... who runs out to buy a book saying "cant wait to see those continuity issues fixed!"