We take a lot of things for granted, like gravity, the speed of light, the laws of physics, the boiling points of different elements.
Tweek one thing, one small detail, and it would all be out of whack and human life would not be possible.
I think there is a good argument for saying that nothing in this universe was randomly determined, not even the smallest detail.
No offense meant by this, but if there's anything to the God is in the Gaps arguement, it's that your gaps of understanding physics, astronomy, and science in general are so vast that God fits in it.
The speed of light, once thought to be constant isn't. Can google that if curious it's kinda paranthetical to my point. The laws of physics aren't so absolute that they prove a god must be responsible for them. Science evolves and changes as newer experiments testing its truths come to be. Better more powerful computers for example allow some concepts and truths to be tested, confirmed, or refuted.
By and large, scientific truth solves specific problems, but still isn't absolutely true in every instance. Much of what science 'takes for granted' is only true here on Earth, or in some cases in microgravity as in orbit. But as our complete guesswork about black holes demonstrates, much of our knowledge is still incomplete.
As we hoped the higg's boson imparts gravity onto larger particles. But as is always the case, the higg's is not the smallest most indivisable particle and is actually made up of several quarks. And they're made up of even smaller things. On down to infinity. Thus while we may discover things about the universe and how things work, the 'it works' depends on halting investigation to some scale. If you went further you'd discover there's yet more to discover and figure out.
But because we don't understand things so completely doesn't mean that some conscious sentient being we call God is responsible. That's just taking the laxy way out and instead of doing the work and investigating we give credit to God and end the inquiry.