Nor does the Bible speaks of 'seventy years of Babylonish domination' so this simply is your narrow view of the seventy years.
I was going to be kind and try not to embarrass poor 'scholar'. But oh well.
I wonder if he has read Jeremiah 25:11:
11 And all this land will be reduced to ruins and will become an object of horror, and these nations will have to serve the king of Babylon for 70 years.”’
So... did 'serving Babylon' mean exile? I've already clearly shown that it didn't, but here's Jeremiah 27:6-11 (just to be thorough):
6 And now I have given all these lands into the hand of my servant King Neb·u·chad·nez′zar of Babylon; even the wild beasts of the ﬁeld I have given him to serve him. 7 All the nations will serve him and his son and his grandson until the time for his own land comes, when many nations and great kings will make him their slave.’
8 “‘“‘If any nation or kingdom refuses to serve King Neb·uchad·nez′zar of Babylon and refuses to put its neck under the yoke of the king of Babylon, I will punish that nation with the sword, with famine, and with pestilence,’ declares Jehovah, ‘until I have ﬁnished them off by his hand.’
9 “‘“‘Therefore, do not listen to your prophets, your diviners, your dreamers, your magicians, and your sorcerers, who are saying to you: “You will not serve the king of Babylon.” 10 For they are prophesying lies to you, so that you will be taken far away from your land and I will disperse you and you will perish.
11 “‘“‘But the nation that brings its neck under the yoke of the king of Babylon and serves him, I will allow to remain on its land,’ declares Jehovah, ‘to cultivate it and dwell in it.’”’”
Jeremiah explicitly states that all the nations were to serve Babylon, but that exile was a punishment for those who did not submit to Babylon.
It's little wonder that the Watch Tower Society has not quoted Jeremiah 27:11 in living memory, and that the only mention of it in the Watch Tower Publications Index is in reference to a Watchtower article from 1937 (in which the original context and the concept of exile is ignored and the "king of Babylon" is said to represent... Jesus).