Maybe they figure that people who like dogs enough to want to see more will also click the link [1] to find out more about the "Dogs of Amazon", which seems to be unaffected by their problems. There they will find a story about Amazon's dog-friendly offices, 30+ pictures of Amazon dogs, and a video showing many of them. The time to consume all that is time the person is not hitting refresh on the shopping site, so maybe is a net win for Amazon.

[1] https://blog.aboutamazon.com/working-at-amazon/how-much-does...