We’re saying that God created the singularity, or Quantum Gravity, or whatever else was ‘there’ before the Big Bang. You seem to be looking at what scientists can prove (or posit) and taking that as the ‘start’. What God revealed to us ‘precedes’ creation (strictly speaking, the notion of time is difficult to use in order to describe the situation, since time, too, is part of creation, and therefore, is something that God created. So, God is ‘prior’ to all of creation.).
I haven’t seen that thread. The thing is, nothing physical can be caused by ‘nothing’; the attempts at proving a
natural ex nihilo creation are generally “smoke and mirrors” – they posit
something, even if it’s a framework or a force (e.g., gravity), from which creation proceeds.
I can see where these scientists are frustrated, though. All along, theists have claimed that God created everything from nothing, and they took it to mean “no (physical) thing”. So, now they have a non-physical ‘thing’ from which they can claim that creation proceeded. Voila! They think they’ve found the solution! Now there’s both a “no thing” and a lack of a ‘need’ to include God in the description of creation! Only problem is, now we’re pointing to these non-physical things and saying, “umm… that’s not ‘nothing’, it’s ‘something’. You just pushed back the goal one level.”