No release is more subject to the whims of journalists than the FOMC minutes.
Nothing is more powerful than the Bloomberg red headline. The Minutes are a nuanced report but markets demand they're condensed into a headline or two.
Go back to April 2012 and markets went crazy on this headline:
It's small but it says: FED SAW NO NEED TO EASE ANEW UNLESS GROWTH SLOWS, MINUTES SHOW
The key word is the last one. It's 'shows' not 'says'. Markets freaked out on the headline but it unwound later.
There isn't a big change markets are looking for here, it's really just the tone of the Fed but that's very tough to encapsulate so beware.