You actually have a great point.
FBI was more focused on self-promotion then on actually fighting drugs.
90% of the screen is dedicated to the FBI logo, which kids just don't care about.
But, as an advertiser, the majority of marketing campaigns directed to kids fail to properly communicate with them and are just a waste of money.
Eh, I think the prominence of the FBI logo is to scare people with the legal consequences of drug use, rather than promote the Bureau. Same reason the words "FBI" or the FBI logo is the most prominent thing in anti-piracy warnings on DVDs.
While I agree it could be due to this reason, it still was a bad call in my opinion, because a scare tactic is totally disconnected with their motivational slogan below the logo.