My issue with this sort of unexplained phenomena is that people are willing to jump to ridiculous conclusions that invalidate or at least poke a hole through physics/chemistry/biology/all the other layers of scientific knowledge, vs trying to look for explanations within the established framework of knowledge. The amount of scientific knowledge we've accumulated so far is huge. It's been very thoroughly tested through multiple independent experiments, quantitative relationships have been verified to ridiculous precision.

It's just astronomically more likely that a dog sensing their owner's arrival is going to be explained within the framework of established science, and not invalidate every layer of our model of the world from mammal biology to quantum foam.