If god can extend a man's life to 500 years (or 900) then is there really any further leap of faith required to think god didn't just preserve all the bugs, and solve all the unsolvable problems that render the ark implausible? It's why this falls on deaf ears with creationists. One magic can be any magic.
One does have to wonder though, if god is really capable of all that, why the fuck was the flood even required? Wouldn't a snap of his fingers kill off all the evil humans instantly? Ha! Your god is weak.
Wouldn't even have to kill them - just make them infertile, and wait.
A deity can afford to play the long game.
Though one does wonder about the [supposed] inherent evil of everyone else.
Even leaving aside the necessary post-flood Noah-family incest to repopulate the world, if the wives of Noah's sons weren't also
their sisters, they must have come from other
families, which suggests not everyone else was
inherently and incurably evil.
But maybe that's falsely trying to apply logic to a biblical fairy tale.
And making the mistake of considering women as people, rather than the rapable-on-payment baby factories which various of the people who wrote the OT seemed to essentially see them as, even when they weren't merely slaves, or Untermensch from other than the chosen tribes.
I don't do sarcasm smileys, but someone as bright as you has probably figured that out already.