Hey now R&P- can you offer a song that is actually really good, but somewhat spoiled by a long "filler" like section within?

For discussion, what is your perspective on this kind of thing?

For those in the business, what is the reason for this?
Update: Guys, thank you one and all for some really thought provoking answers. Love it.
Update 2: Jane,
I love that example and that band, thanks for your post. Your answer didn't come up in the question again, could see it in notifications though. Hope you're well.
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