For a moment there I thought I might have posted the wrong link! I read it again, where do you get Challenger had steam driven capstans?

“No shanties required in the Royal Navy because of the following factors..."
You might be right. I don't even know what a shanty is, goes double for the instrumentals.

However, none of what you write applies to nautical work song or proceleusmatics and that's what the sources are saying the Royal Navy, and pretty much every other fleet, used in some form or fashion.