They didn't sneak anything and they never will. Looked into it deeply. They used AI assets as placeholders during development. But everything in the shipped game is human-made. No further use of generative AI is expected, since the game awards controversy the company's management published a statement of banning AI use entirely in their company.

The whole controversy around indie game awards was also blown beyond proportions. A company used a new technology at a time when the tech was new and the debate around it's use was still inmature. Then dismissed it for it was not good enough. They failed at quality assurance and a couple of textures weren't deleted. They replaced them as soon at they found out. By all intents and purposes, this controversy does not qualify sandfall as an AI using company, and to affirm so is ignorant of the context of all that went down in reality.