I don't get it. Why are they only looking for aliens that fly small spaceships. Won't it be easier to find them if they have BIG spaceships? (This whole article feels like a #DouglasAdams joke.) (from my IG)

I don't get it. Why are they only looking for aliens that fly small spaceships. Won't it be easier to find them if they have BIG spaceships? (This whole article feels like a #DouglasAdams joke.)

from my Instagram https://www.instagram.com/p/BEIKJlzumG1/