The New Tyrannosaurus Rex

So... yeh. You've all probably heard the.... daspletosaurus news. (These news > www.livescience.com/58474-new-… )
In my opinion, there paper does not really explain why tyrannosaurids "didn't have lips". It mostly focuses on the question of: "Did tyrannosaurids have sensitive scales on their snouts, or just beaks? And why? (based on the new discovery)" 
I believe that both scales and bare skin are possible (on the snout) , but i just made this because.. you can never have enough lipped rexes! (also because i wanted to make a tyrannosaurid with scaly lips since every single rex reconstruction i've made has smooth, bare lips... and also to add some armor xD) _{ewwww scaly lips and armor}  
Since we don't have enough evidence to prove that they didn't have lips, i'm free to speculate, and so are you! 
Remember, this is my opinion, but there's a 50% chance that i'm wrong. So, please, don't complain about the lips or whatever. I know that both theories could be correct, but i will always reconstruct tyrannosaurids with lips unless we find solid evidence that they didn't have them.

The paper said that they were lipless, but I personally Don't buy it. 
Only time will tell....