That’s not what the article says.
There’s a bias we have that humans are the pinnacle to evolution and if evolution makes everything better over time then shouldn’t everything end up being human-like eventually?
In reality evolution just makes us adapt to the environment as it is, and to have larger energy consuming brains is not always better for survival. If it were, everything would evolve bigger brains.
Dinosaurs could have taken that step incidentally at some point in another timeline, but they were nowhere close to the traits that are necessary for maintaining a large social society.
Sam had the ring for just a moment before he started fantasizing about leaving to come back with an army of hobbits to take mordor by force and making it into a garden. He barely managed to give it back to Frodo who had been carrying it all this time while it slowly chipped away at his mind having to constantly remind himself to not give in to its temptations while it was punishing him for not doing so with constant torment.
But sure he was just useless, go Sam whoo!