The entire main plot where they were stuck without any hope of assistance. Multiple times it is stated that even in the Outer Rim nobody is willing to help the Resistance. The Empire never controlled the Outer Rim Territories. That is why Obi-wan Kenobi was able to hide on Tatooine, the rebels had a base on Dantooine and Cloud City was not under Imperial control. Even Core Worlds like Alderaan were known for a lack of support. It took the Emperor two decades after declaring the Empire to finally dissolve the Senate. The Last Jedi takes places days after The Force Awakens and in that time the First Order goes from a fringe group that the New Republic ignores as a non-issue to the unquestably most powerful entity the Galaxy has ever seen.
This issue of the sudden dominance of the First Order is part of the problem with Galaxy’s Edge being such a joyless place. Until The Last Jedi, the Outer Rim Territories were wild, anarchic places outside the control of the Republic or Empire. It’s the exciting place where rebels, outlaws, smugglers and bounty hunters all hide out, drink and gamble away from oppression. Batuu was one of those places until it suddenly caved to the First Order.