Noah's literal flood was local or the Bible uses the word: "Adamah" which means Eden. The plants and animals that Noah saved were domesticated. All the plants and animals in Eden.
A "flood in Eden" and nowhere else on planet Earth - could not be reconciled with the Bible details in Gen 6 and Gen 7 - as read the text.
Gen 6 details that would need to get edited/down-sized
11 Now the earth was corrupt in the sight of God, and the earth was filled with violence. 12 And God looked on the earth, and behold, it was corrupt; for humanity had corrupted its way upon the earth.
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13 Then God said to Noah, “The end of humanity has come before Me; for the earth is filled with violence because of people; and behold, I am about to destroy them with the earth.
17 Now behold, I Myself am bringing the flood of water upon the earth, to destroy all flesh in which there is the breath of life, from under heaven; everything that is on the earth shall perish. 18 But I will establish My covenant with you; and you shall enter the ark—you, your sons, your wife, and your sons’ wives with you. 19 And of every living thing of all flesh, you shall bring two of every kind into the ark, to keep them alive with you; they shall be male and female. 20 Of the birds according to their kind, and of the animals according to their kind, of every crawling thing of the ground according to its kind, two of every kind will come to you to keep them alive.
The idea that birds cannot escape a local flood so then at least 2 of each kind of bird needs to come into the ark lest birds perish from the Earth - is pretty convoluted logic to insert into the text.
Gen 7 details that would need to get downsized/edited
2 You shall take with you seven pairs of every clean animal, a male and his female; and two of the animals that are not clean, a male and his female; 3 also of the birds of the sky, seven pairs, male and female, to keep their offspring alive on the face of all the earth. 4 For after seven more days, I will send rain on the earth for forty days and forty nights; and I will wipe out from the face of the land every living thing that I have made.
8 Of clean animals and animals that are not clean and birds and everything that crawls on the ground,
14 they and every animal according to its kind, and all the livestock according to their kind, and every crawling thing that crawls on the earth according to its kind, and every bird according to its kind, all sorts of birds. 15 So they went into the ark to Noah, by twos of all flesh in which there was the breath of life. 16 Those that entered, male and female of all flesh, entered as God had commanded him; and the Lord closed the door behind him.
and the water increased and lifted up the ark, so that it rose above the earth. 18 The water prevailed and increased greatly upon the earth, and the ark floated on the surface of the water. 19 And the water prevailed more and more upon the earth, so that all the high mountains everywhere under the heavens were covered. 20 The water prevailed fifteen cubits higher, and the mountains were covered. 21 So all creatures that moved on the earth perished: birds, livestock, animals, and every swarming thing that swarms upon the earth, and all mankind; 22 of all that was on the dry land, all in whose nostrils was the breath of the spirit of life, died. 23 So He wiped out every living thing that was upon the face of the land, from mankind to animals, to crawling things, and the birds of the sky, and they were wiped out from the earth; and only Noah was left, together with those that were with him in the ark
Clearly the newly freed slaves gathered at Sinai were not about to insert the idea of "local flood' into Moses' text at that point. We probably all agree on this point.
The idea that Noah builds such a huge structure to just house his own private farm animals - but then oddly enough - only takes 2 pairs of each kind of unclean and 7 pairs of the clean animals on his farm - is also going to result in some pretty tortured logic inserted into the text.