Front Running the Fed - Who Knew?

Curve Watchers Anonymous is paying close attention to the following snip from the Bloomberg article Pimco Calls Fed Rate Policies ‘Good for Risk Assets’

The central bank said in a separate statement that it will announce a purchasing schedule today and that its buying will be concentrated “in the two- to 10-year sector” of the maturity spectrum, though it will also buy other maturities as well as Treasury Inflation Protected Securities. Clearly no one could have possibly known that in advance. Or could they?