He has the skill-set still, just the rest of the pack have actually improved. The likes of Jones are just on another level, even the Rampage of 7 years ago wouldn't have done any better against him. He's too slow, his wrestling isn't as good as Jon's, and he had no clue how to handle the reach. Those flaws existed in the Rampage of 7 years ago, and the Rampage of today.
Add another one to the list:
Second round Lauzon