Most organizations would rather keep staff away from Facebook as long as they're not in the social media marketing enclave. The temptation of drifting unto your personal Facebook account instead of Facebook for work makes this a laughable proposition but there's always a customer for every product no matter how shitty it is.

As true as that might be, the lead up to FB@Work has been a lot longer than for other services from them, they've had a fairly robust alpha/beta test period with a number of organisations.