The forven formula only proves the math. Without any evidence of any beginning there is no meaningful conclusion that can be made beyond the math.
I have never said otherwise, in fact i believe the title of the thread is
Creation from Nothing using math.
It is a hypothesis based on the Wheeler-DeWitt equation. One of several hypothesis on how the universe started, i know of 32* different hypothesis, more than one of those hypothesise considers the creation of the universe from nothing. I believe even the late great Stephen Hawking toyed with the idea of a universe from nothing for a while.
One thing about hypothesising how the bb came about is that they are all hypothesis, no one knows.
Beside the paper i linked to here is another page considering the idea, and others
The Presumptions of Hawking and Mlodinow in "The Grand Design".
* Each of those hypothesis are based on either based on observed phenomena, natural laws, mathematics or combinations of those 3.