Rational, when we learn Perek Mocher Ess Hasfina, we aren’t supposed to deduce that you can find ducks that are oversized. You are supposed to learn such Sugyos with the awe of seeing how far their language is from yours. These Sugyos give us a perspective into a depth that we will otherwise not encounter.
Also, being that what is written is completely true, although not about a duck you will bump into anytime soon, we learn it and what goes in goes in.
And, like other areas in Shas, you try to delve into it and take out what you can, whether in the form of Mussar, theology, Chassidus, philosophy, Pilpul, or even Kepshuto as long as you don’t run with it.