[lupire]

The article seems to fail to distinguish between "dad jokes" and "jokes for kids".

One of the main factors is that a "dad joke" is inserted in real conversation (Hi Hungry, I'm Dad", or an observational pun), whereas if it's set up as a fictional story ("at a funeral a man says 'May I offer you a word of comfort? Plethora'"), it's just a (kids) joke.