They take the money of naïve people on a monthly basis without having to do anything in exchange because this service relies on something from a fantasy tale to actually happen in real life.
If it was a free service or if it assigned your pet to a caretaker after you died rather than it being specifically "after the rapture happens," then it would be fine. But this is clearly them using religion as an excuse to steal money from a cult of brainwashed people who don't know any better.
It's a scam.