How wonderful it is that we will get to see Little Miss Muffet and Mr. Powderpuff again!
I frankly don't think they've thought this through. While it would be nice to be able to see my beloved pets once again, it also means that the Celestial Kingdom is chocked full of quadrillions of cockroaches, spiders, scorpions, and parasitic wasps. In fact, for every human soul in heaven, there will be trillions of insects. Yes, taking the Pope's statement literally, every bedbug and dust mite on the planet has an eternal soul.
And don't forget, if life begins at conception, as the Catholic church still professes, that includes a few bathtubs full of maggots for every sainted human. (Picture excluded so you can keep your breakfast down.)
But, don't stop there. If all animals go to heaven, that includes extinct ones. Once you achieve your just reward for living a good Catholic life, I hope you find that the millions or billions of tyrannosaurus rex, velociraptors, and dakosaurs are now living in peaceful harmony and have no interest in eviscerating you.
Welcome to heaven. Here's your stegosaurus.
"Yes, well, but, I'm sure the Pope didn't really mean all animals." Not so fast. The Catholic church still teaches papal infallibility, after all, the doctrine that what the Pope says cannot be wrong. Ever. Except when it is and another Pope takes it back, later.
Does all this seem really silly to you? It should, if you're a rational person.