TheKillerBs
Maester
Sanderson's first law is about solving plot problems. It applies to the characters, not the world. The criticism of magic to handwave away stuff that makes this world go round seems a tad silly to me. So there's some unexplained force that keeps the temperature livable, allows for plants to photosynthesise, etc. Okay, fine, let's just call it magic and be done with it. Let's move on to the story, shall we? Now, if you start trying to pseudoscience your way out, then people who know about the topic will get jarred out of the story.