Maybe it strikes you as trivial because you don’t understand the issues involved. God created both the Earth and light on Day 1. And the Earth must have been created already rotating because the Bible says that there as an evening and a morning on the very first day of creation.
In the beginning God created the heaven and the earth. 2. And the earth was without form... (Genesis Chapter 1 (KJV))
Seems to me it says He created "the earth" (the particles which compose the mass of the globe) and not "the Earth" (the globe). And if the particles which compose the mass of the globe (the earth) was "without form", I don't see how the yet to exist globe (the Earth) could have been rotating.
It was on the third day that (I'm skipping some parts) "God called the dry land Earth" (the globe).