I don't think that by pumpkin they meant that it would be out of service permanently... rather it would be out of service until they could arrange to get the FAA inspection carried out where it is parked, and that could take weeks (if not months) especially up there in Alaska. I'm familiar with the show and from what I understand, every aircraft gets used every day whenever possible, as airplanes that do not fly do not make money for the company.
Even if it were pumpkined (since when did pumpkin become a verb?) for only a week, that's still a whole weeks worth of revenue lost to the company. It would be like having a three-bay auto repair shop that is always busy. If one of the lifts goes out, you lose the use of that bay until it gets fixed... meaning a 33% drop in revenue during that time. Needless to say you'd much rather do everything you can to keep it from going down before that happens so that you wouldn't be without use of it.
I will also add that while I enjoy that show, they do tend to "over-dramatize" things. There was one landing they showed where the guy was flying a grandmother, mother, and infant daughter to an airstrip, and during approach the narrator claimed that he determined that the crosswinds were too high for a safe landing, especially with people on board. He made a go around and landed on the second attempt (dead center, no crabbing, perfect landing by the way) and when out of the plane and they were doing their interviews, you could see no sign of any significant wind anywhere. Personally I think the first landing attempt (flyover) is normal practice for these dirt strips, to make sure no big holes or debris were present before landing on it but that's simply too boring for most people who watch the show.
My point is that even if that plane had been pumpkined, it probably wouldn't have been THAT BIG of a deal, but the narrator has to make it a dramatic moment. You kind of have to take all of those things with a grain of salt.
Speaking of over-dramatizing things, remember that episode of American Chopper that Junior got fired? Just before that happened, remember the scene where Jr and Sr got in the fight in the office and Jr walked out and Sr kicked the refrigerator across the room? If you look closely, you'll see the mini-fridge with the microwave on top of it against the wall. As he kicks it away you can see the electrical outlet right behind them and it is very obvious that nothing is plugged in to it. Also, the fridge and microwave move freely when he kicks them, nothing hanging them up.. no cords holding them back...just BAM across the room. How many offices do you know of that have a fridge and a microwave that aren't plugged in? You can't tell me that wasn't planned...