From your article:

  In the example Google showed us, a graduation photo came
  through. The suggested replies were along the lines of
  "Congratulations!" and "You look great!" Think for a moment about
  what it takes to do that. Google recognized it was a graduation
  photo and then went a step beyond just guessing what it was, it
  guessed at appropriate responses.

Umm. Its suggestions are no better than a simple like. It's less than greeting card sentiment. And it removes the need to even know what you're looking at. I'm not sure that's really a positive thing. Thread full of messages responding to pictures that the users never looked at. It's bad enough that for many people birthday and anniversary and holiday well-wishes are a simple "Happy Holidays" on someone's FB timeline or a text. Do we really need to automate sending those so that the sentiment is delivered but never actually shared?

Dystopian future headline from December 25th, 2040: Millions of zombie "Happy Holiday" texts, Google to use death certificate database to fight zombies.

It also learns users that time investing into their apps doesn't last, which is basically company suicide.