I mean yeah, it was kinda obvious that they busted an ad fraud sim farm but needed to pad that resume for the bosses. There's no glory in "just" fighting fraud right now.
Just tell people that this is the sort of setup that is used by (overseas) scammers to send messages to thousands of potential victims at a time to rope them into various scams.
Fighting scammers is a hugely popular thing with the general public. No need to dress it up with that U.N. nonsense to get the general public's approval. People wouldn't even have minded that the Secret Service ended up uncovering a scammer support operation whilst tracking down something else.
And that's the point. No-one would have thought bad of them for following up on stuff within their bailiwick and uncovering a scam support operation. It's the old caught-the-major-bad-guy-in-a-routine-traffic-stop tale, after all.