As reported by engadget,
The dispute was over in a matter of days after the December 29th warning, but it still highlights the issues with App Store guidelines. While a focus on human reviewers reduces the chances of malware and other dodgy content sneaking through the review process, it also increases the chances of inconsistencies where a reviewer might interpret rules differently.
This isn’t as much of an issue on the Mac as on the iPhone, as developers can easily offer apps outside of the App Store. Still, a removal could have dealt a serious blow. The Mac App Store offers significant exposure, and it would be that much harder to attract new users by pitching them through other channels.
Just got off a call with @Apple. Appeal accepted and Amphetamine will remain on the @AppStore. Thank you all for your comments, opinions, and action. We may not all agree, but I am happy we all still have the freedom to express ourselves today. ❤️ pic.twitter.com/PV7eB9aUfn
— William C. Gustafson (@x74353) January 2, 2021