Yes, exact precision doesn’t really matter. Order-of-magnitude does, insofar as it indicates whether it’s “ballpark” reasonable or just plain absurd. Yes, Samson could kill something on the order of a thousand people (alright, maybe it was several hundred) within a reasonable time (less than a day). But if we look at the objective reality about animal species & sizes, compared with a pretty clear statement of how big the boat is, and conclude they’re incompatible by (as I like to put it) orders of magnitude of orders of magnitude, then the “Noah’s Flood” story is just preposterous ... or maybe the numbers do work out kinda close, making the story plausible (allowing for details unnecessary in a summary telling of the story).
First thing to consider is the purpose of the flood. My personal opinion based upon the amount of time in the ark, and the dove finding a green leaf says the flood was localized. I think it was domesticated animals that Adam named that Noah housed.. Course there would also be a need for the scavengers to keep the earth clean.. And the beasts of burden for transportation.
Don't you think that the God who created the earth, and the animals and plants that inhabited that earth, and who could flood that same earth, would be able to bring back multitudes of species that wouldn't necessarily have made the ark journey? Omnipotent means exactly that.