I get it, but even if it was to represent Jesus ascending to God’s abode to a people who thought Heaven was “in the sky”, so what? It still would get the point across.
But here is where I’d like to point out St Paul referring to the 3rd Heaven. I believe it is the case that this refers to the first “heaven” being the sky, the second “heaven” being space (keep in mind that we say, “the heavens” when referring to space or “heavenly bodies” when referring to planets and the like). The third Heaven being the abode of the saints/angels. So, if it just meant the sky, how does Jesus going up the sky prove He went through to the 3rd Heaven?
But here’s where we remember the Jews and how Jesus fulfilled the Old Law. The shekinah cloud of glory. It seems He was ascending into the cloud of God’s glory!
“Pray, hope, and don’t worry.”