On the bright side...
A spaceship with such a power plant can make the Kessel run in less than 12 parsecs!
Interestingly, Star Wars types have actually constructed a plausible explanation for that flub, explaining that the Kessel Run is a series of smuggling stops that normally add up to a certain distance. A skilled pilot, taking more dangerous hyperspace routes, can cut the overall distance.
The best explanation I've seen for the Kessel Run was in a Star Wars comic, where the route turns out to be a sort of "snipe hunt" that old smugglers put new smugglers (like Han Solo at the time) through.