it's a disappointing choice of words to say the expertise is getting diluted. it's not diluting, it's spreading, getting disseminated.

to say that it's diluting softly implies that it's getting lost, that we're running out of a specific 'innovation' when in fact, it's getting adopted, integrated into our regular lives. Of course it's initially imitated, this is part of how it's getting spread (copied). People will imitate it so to learn what the 'innovation' (as a noun) actually is.