Don't let them fool you. This whole rabbit trail about Jonah came from the same post insisting Adam physicallyI think if Jonah did not die in the belly of the great fish this congruency would not appear in scripture.
“For just as Jonah was three days and three nights in the belly of the great fish, so will the Son of Man be three days and three nights in the heart of the earth.” Matthew 12:40
Jesus died on the cross and was buried for three days. We know this to be true.
If Jonah was not dead in the belly of the great fish,and as you rightly observe, he would not have offered up that prayer.
Also,if Jonah wasn't dead,then the Matthew 12:40 doesn't make sense.
Because if Jonah wasn't dead those three days,Jesus wasn't either.
died in the making of Eve, Abraham physically died in the making of a covenant with God, and Jonah was sleeping
while in the belly of a great fish. Sleep supposedly again denoting death even though sleep is nowhere in the text,
which these falsehood promoters refuse to acknowledge. And these falsehoods have been approved even after the
meanings of the words have been given from our trusty concordance, meanings which prove the intent of the
passages in question concerning both Adam and Abraham is to indicate sleep and not death.