It is very easy. The idea that things just keep on running is laughable to me. It's not just tech but the ability to maintain and fix it and run it. The Burn destroyed millions of lives and upended everyone. People couldn't just go back because "back" was not possible, either due to loss of skill, knowledge or just outright trauma and fear.Equipment can only run so long as you have the resources to maintain it. Given the immense upheavals in the galaxy due to the Burn, it's easy to conjecture that things returned to a scarcity environment real quick when very few warp-capable ships were still around to make the trip from system to system.
Pull yourself up by your bootstraps indeed. Spoiler alert, that was use to be said as referring to an impossible task.