I worded it badly, just that line like that, you are indeed right.

Here's are my thoughts: God could have made the Earth flat, spherical, cubic, or whatever shape, and still make the universe works exactly how He wants. He chose a specific shape, and that's it. Maybe there's a reason, maybe it's just a result of all the other laws of the universe He wanted to have and He was fine with it, but there's no point in caring so much about this on our side. This shape, to us, is completely insignificant. Will your life change that much if tomorrow, you learn it's actually flat? Or Cubic? No, nothing will change.