The math isn't speculation but the idea that it has some deeper spiritual or religious meaning is. (Interpretation as you correctly put it.)
I actually don't care if there is a creator or there isn't. It's just when people try and wrongly justify believing in it then I feel I am entitled to discuss it with them, especially on a public forum.
I'd like the idea of a deeper meaning in life, a soul that never dies and what not which is why I tried so hard to be religious as a young person. However I can't rationally believe it so I don't pretend that I do.
The mathematically cool things in nature you're pointing to are generally just a common manifestation of the physical law that controls it.
If I was making you're argument I'd make the suggestion that God made physical law (such as gravity, electromagnetism) and that's why stuff turns out nice, rather than saying God designed the niceties personally.
But then again since we are playing with theories that don't have a huge amount of backing, I'll throw in M-Theory(an advance on string theory) that predicts 10^500 universes all with their own physical law.