I mean the Niners’ fourth down play.
Oh that one. Really that’s a play they’d been letting go all game. And given how Crabtree was pushing on the defender’s head you can make an argument that if they were going to throw a flag on the defender for holding they would also have to throw one on Crabtree for offensive pass interference. And usually, especially last night, if both the receiver and the defender are interfering with each other they let it go.