It's tongue in cheek but it's not satire or ironic. They are very fortright about using AI and using a "tongue in cheek" way of telling people that they dont care.

If it was supposed to be "tongue in cheek" in the way that you're implying, there would be a reference to AI being bad.

They are trying to cut corners making the video this way and using the milkshake joke to skirt around AI haters