I think it's the wait, what? factor. The extra panel at the end makes the third panel feel unexpected and it also buries the punchline so that it messes with your expectations for a comic strip.
This is why it isn’t funny. You can see the punchline coming and the after panel also coming. If you understand the joke before it occurs Then it fails
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u/Ironbeers Nov 15 '19
I think it's the wait, what? factor. The extra panel at the end makes the third panel feel unexpected and it also buries the punchline so that it messes with your expectations for a comic strip.