Call Back: Grimlock's missions contain a number of call backs to humorous moments featuring him and his fellow Dinobots, including Slag excusing himself while walking over a piece of rubble with a Decepticon underneath, and Grimlock and Slag arguing about Beryllium baloney and Cesium salami.
Developer To The Rescue: Hasbro had already decided that the Dinobots didn't fit into the Prime/War for Cybertron universe long ago. Matt Tieger, game director of High Moon studios managed to change their minds to allow him to add them to the game.
Tieger has stated in fan interviews that the article misunderstood. In reality, Hasbro had simply not yet decided what to do with the Dinobots in the new aligned continuity, and when his team approached them wanting to use them, Hasbro was more than happy to work with them to integrate Dinobots with dinosaur modes onto Cybertron. See here for more.