That was interesting. They don't say it at the top, but basically the view they end up offering is an Old Earth combined with literalistic days of creation -- one of the several Old Earth variations. So, the LCMS view of at least this site is not exactly what I expected.
"At the same time, the Synod firmly believes there can be no actual contradiction between genuine scientific truth and the Bible. When it comes to the issue of the age of the earth, several possibilities exist for "harmonizing" Biblical teachings with scientific studies (e.g., God created the world in an already "mature" state so scientific "data" leads one to the conclusion that it is older than it actually is, etc.)."
It's not an exaggeration to say there are very many creation theories.
It would be encouraging to see everyone honestly admitting their theories about creation -- YEC for example -- are only a theory.
Admitting your own view is only a theory, or at least avoiding saying your theory is the only honest interpretation of 'God's word' when in fact the Word of God doesn't say how old the Earth is -- following the good example here from the LCMS: "The Lutheran Church—Missouri Synod does not have an official position on the precise "age of the earth," since the Bible itself does not tell us how old the earth is." -- that admitting the truth about your theory only being a theory would be a good indication of honesty and humbleness, both of which are unconditionally required of us, we read in scripture.