It was kind of a friendly “Thank you for helping us get this far” message
Actually, I’ve heard a lot of conflicting reports on that. Some sources say that it was originally a two-part episode, but I remember Larson himself saying that it SHOULD have been a two-parter, but not necessarily that it originally WAS a two-parter.
Basically he said F&MF wasn’t his idea and he didn’t really write it.
I’m really not so sure Starlight cannibalized Spike’s role here after thinking about it.
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