People keep saying this despite it being easily explained? In a universe where light travel is possible meaning you can travel billions of miles in no time, would you imagine that everyday life would cease to function anywhere in that area because there's the 'possibility' that the First Order could board you? The whole thing is fiction so anyone can pull ridiculous arguments in to it if they want? Look at some of the greatest movies of all time and you'll easily be able to find holes in their plots.
Let's use Star Wars (the original) as an example.
What are the odds that the very droid that has a message hidden in it (R2-D2) ejects from a boarded ship and just happens to land on the same planet where Leia's brother lives? Not only that but what are the odds that it ends up being bought (and only because another droids blows up) by Leia's brother, who also just happens to be the son of the very guy who boarded the ship that resulted in the droid being ejected in the first place?
When Luke travels to Dagobah in search of Yoda, he just happens to crash his X Wing within walking distance of the very person he's seeking out. I wonder what the odds of that are, hmmmmmmmm?
Most people who are Star Wars fans are happy to accept those bizarre and highly unlikely scenarios without question, but not that a space cruise might happen in a Galaxy the First Order could travel too?