And you are basing this assumption on our vast 'Real Life' Space travelling experience?
Our Space travel now is comparable to the first steam powered cars that are ancestors were driving around the 20's and 30's. (look at the controls of the latest cars on the road, Driverless, distance controlled, Electrical drive)
Who knows what space travel will be like in 3300+? It could well be like ED?
Without the space air though.