FWIW, I'm a freemium player with Duffman as my only premium intel earner and he's only earning half the time because the rest of the time I have him making yoga mats. I send 5-8 people at a time to collect intel and I earned Agent Bont yesterday afternoon. I've never had a problem earning event prizes.
Although, I really wish I could've earned more of those prize vouchers during the most recent holiday event.