I agree. they won't be able to price out all homebrewers along with craft breweries just by leveraging NB sales, that's ridiculous.
But I do believe they will use inside data from NB sales to try to predict the up-and-coming trends and then beat craft breweries to it. It's like jumping on the bandwagon before anyone else knows about it, using homebrewers as some sort of innovation/taste-testing incubator of ideas.
So if the future fashions are, for example, black gose, midwest IPAs or hoppy cream ales, the InBev can learn about it while those pseudo-styles are still in early embryonic stages of development and release their own version, say Laguinitas Black Gose, Goose Island Midwest IPA, or Ballast Point Hoppy-Creamy before craft breweries can ever catch up.