Ooooh, this one was cool, if a little conventional. The twist that the mascot was the manager and the real manager was dead all along—that twist actually returns the story to conventional mascot horror, where the mascot comes to life and does bad things. However, the fact that the mascot gets beat up and the story turns into a commentary on mascot horror itself (impermanent) makes up for it. And then when a new mascot shows up at the end, well... yeah. There will always be a Garten of Banban, a Baldi, a Poppy, a Bendy, a Freddy Fazbear. It's the zeitgeist, the specific mascot matters little.
Gaucho is dead, long live Ponky.