Could the author of the article have just grabbed some random tool to do the touch-ups not realizing it was adding smiles? I recall some tools [1] that used to

Could the author of the article have just grabbed some random tool to do the touch-ups not realizing it was adding smiles? I recall some tools [1] that used to do that and perhaps a tool used to colorize photos would have added in such a feature? [1] https://www.theverge.com/tldr/2017/1/27/14412814/faceapp-neural-networks-ai-smile-image-manipulation https://www.theverge.com/tldr/2017/1/27/14412814/faceapp-neu...