There’s a brewing company here in the SF Bay Area that has a beer called “Wilco Tango Foxtrot” [WTF].
They got the “Tango” right, and the “Foxtrot” right, but the NATO word for “W” is “Whiskey”, not “Wilco”.
Then I realized they probably could not use “Whiskey” as part of the beer’s name for truth in labeling reasons.
I heard of that beer and thought the same thing as you.
"Wilco" used to be used during radio transmissions as the shortened version of "Will Comply." Heard it all the time in the 60s when I was a kid flying with my uncle.
I think that term was also used in telegraph transmissions as well.