The specific shape of the earth may not be important for salvation
Y'all can take comfort at that. <Laugh>
(I wouldn't say any part of God's creation is irrelevant, otherwise he wouldn't have revealed it to us so often)
He revealed the shape of the earth in unmistakable fashion to anyone who isn't scared to actually look.
However, I would say there are some serious theological issues with modern cosmology more generally, and the naturalistic creation mythology that it presents via billions of years of "Cosmic Evolution"
Sorry, but that's simple rubbish.
... Heliocentrism is the foundation for this mythology, and heliocentrism in turn fully relies on a belief in a globe earth.
Which is an plainly observable fact, whch your curious pseudo-Christian, and, tbh, frighteningly dualistic, reading of the Scripture requires you to deny.
Taken together, this mythology all leans toward giving glory to the processes of nature.
Which are, in fact, designed by the Creator of Nature, God. Y'all are like the folks who prate about something that "defied the laws of Physics", not understanding that the Laws of Physics, like all other natural law, the Laws of God, part and parcel of His design.
It's like the incredibly dim question of "Who invented gravity?" The obvious answer being "the same God Who invented all of nature". You may not like the idea of gravity, or light, or the layout of the universe, but there's no gainsaying Who created it, and the irrevocable Laws by which He designed it to function. You may not like them, and you may want to take it up with our Creator when the opportunity arises, but they are what they are regardless of either your opinion, or your gross misunderstanding of Holy Writ.
One can tack on 'God' as the ultimate driver of cosmic evolution,
Who did you have in mind? I know your lot tend to see Satan as a Bad God in opposition to the Good God who we revere, but the fact is there's only one God, and Old Nick is simply one of His creatures, who exiists only at God's sufference. So yes, God's Laws are the "ultimate drivers" of of the workings of His cosmos, whether you approve of them or not.
but as most Big-Bang cosmology
Big Bang, as opposed to "LIght, BE!". Gotta make sure we use properly religious nomenclature, don't we? Imean, one means when everything came into existence, and the other means... when everything came into existence. Wouldn't want to confuse the two, woould we?
believers would tell you, God is unnecessary
Believers in what? Have you given that strawman a name?
and simply an option of personal preference.
Nope. Science can only speak from evidence, so it can only speculate on what caused the Creation. Christians believe, by
revelation that God caused the Creation by His command. There's no one I know of who believes that Creation
didn't happen.
Modern cosmology makes God a mere option
Beating the strawman again.
and usually inspires agnosticism and atheism.
I'd venture that folks who thump the tub for what are generally perceived as numb-skulled indeas like "flat earth" and "geocentric universe" do more to drive people away from the Christian faith than anything else. The perception becomes that Christians are a bunch of mouth-breathing illiterates whose religion requires them to deny reality. Sorry, but that's the fact. I'm sure that reinforces the way y'all would like to see yourslves, as true-believing stalwarts, the Chosen Few who stand opposed to the machinations of the Bad God. But in fact the image is, well, of just another bunch following the made up religion du jour.
Its adherents are more interested in socially 'evolving' towards the exploration of an infinite Star-Trek universe
Dunno about the "evolving" part, except that it provided a place for your fellow flatties to holler "boo!" Exploring the unverse God created? Sounds like a plan to me, mate! In fact, I 'spect that'll be something that that's one of the jots of Heaven, to be able to explore and marvel at God's infinite Creation. Of course, I'm sure y'all will be allowed to stay in the little snow globe universe that's all that you believe exists.
, instead of humbling themselves before their Creator
Really? Lessee, we believe that God created a universe vast beyond our comprehension, and designed it with unimaginable beauty and elegance.
Y'all believe He Created the little ball we're currently standing on.
, repenting, and surrendering to the cross of Christ.
So this comes back to "Flatties Only" sign on the gates of Heaven", right? I think you're going to be disappointed there, as well.