The Forbes article definitely isn't praising Zynga. But, I also didn't read that it stated the loss of users had anything to do with Zynga. The article writer actually infers that the loss of users would have happened regardless.

"but they must know that if they had waited just one more month to sell, they wouldn’t have been able to command anywhere near that price after losing so many users."

It just references the omgpop acquisition because it was very recent which makes the story more interesting.