Doubt it. Microsoft probably just sees "voxel game" and files the claim, because they don't lose anything if it fails.
From the article:
>Luanti’s Android app is currently not available on the due to a baseless DMCA notice filed on behalf of Microsoft by Tracer.AI, alleging that Luanti infringes Minecraft’s copyright.
>Luanti is a voxel game-creation platform where anyone can make, share, discover, and play blocky games.