Except that nobody has proven that BB existed. But if
they somehow do, all that they will be proving is that BB is God, and that it was God that created everything.
Back to religion again.

Did you see the CMB on your TV?
BTW, if science finds out that God/alien civilization created our universe, maybe we'll be able to figure out how to communicate with it, and we'll learn more about it.
I for one would have so many questions...
I don't have or own a TV.
I don't know what CMB you are referring to.
Science already found that God created the universe. How? By finding out how complex the universe is in every way. Whatever created the universe is God, just to be able to create such complexity. See the