Nah, son. Thylacines have, in a way, become cryptids since their extinction, complete with cheesy travel shows where some bogan tells you all about how they totally saw one time and they’re 100% sure it was a thylacine they barely saw from a distance running away through the tall grass after sunset. I’ve seen similar shows about Bigfoot, Nessie, Mothman, and others. They don’t exist anymore, making your chances of seeing one alive no more likely than seeing Bigfoot, which is the point I was making. Animals thought to be extinct being officially rediscovered is a pretty rare occurrence; I assure you it doesn’t happen “regularly”. It’s a big deal when it happens because it’s quite rare. Yes, I’m familiar with the stories of all the other extinct species you mentioned as well. The ivory-billed woodpecker is still considered by most ornithologists to be extinct, and the last widely accepted sighting of any individual was in 1987, despite some supposed (but not universally accepted or entirely conclusive) sightings every once in a while. In 2020, a guy working for Fish and Wildlife claimed to have ID’d one in video footage, but it must not have been very compelling because the very next year Fish and Wildlife proposed declaring it officially extinct. People claim to have sighted the ivory-billed woodpecker not infrequently, much like the thylacine. What is infrequent is any compelling evidence whatsoever, however.