==The fact that you think this principle is a *weakness* as opposed to the defining *strength* of science speaks to your fundamental misunderstanding of the purpose of science itself.
It does indeed reflect the strenght of the scientific method. Whereas it reflects the weakness of Big Bang cosmology. Which should come as no surprise—as Stephen Hawkings et al admit—one of the core assumptions of Big Bang cosmology rests on an ideology-based (as opposed to a scientific) foundation.
What scientific theory better explains the origins of the universe compared to those used by modern cosmology?