I'd heard the (apocryphal?) Churchill quote as a response to the rule about ending a sentence with a preposition. The way I heard it, he replied, "That is errant pedantry, up with which I shall not put."
This argument reminds me of the story (folktale?) about the youngster, obviously a "newbie," visiting a college campus.
"Excuse me," he asks of a student. "Can you tell me where the library's at?"
The student replies: "Here at [fill in name of institution you hate], we don't end our sentences with prepositions."
The newbie says, "Then let me rephrase my question: Can you tell me where the library's at, Asshole?"
It's an old tale, and I'm reminded of it both by tone of language and the discussion of ending sentences with prepositions.