Werner Herzog became the protective father figure Baby Yoda never knew he needed when he rebuked The Mandalorian filmmakers on set for considering to replace the puppet with a CGI version of the character.
According to Vanity Fair, Herzog could not hide his contempt when he spotted Jon Favreau and Dave Filoni removing the pint-sized, pointy-eared puppet from the set in order to reshoot the scene in case they decided to substitute the puppet for a digital surrogate in post-production.
“You are cowards,” he apparently said. “Leave it.”
Source: IGN.com The Mandalorian: Werner Herzog Called Crew 'Cowards' for CGI Baby Yoda Idea