Interesting article Brandon! It’s funny how science theories can change over time. As far as T.rex being lipless I suggest you to check the following link: https://youtu.be/ZyoxPknp670

Personally I find the reasoning of Tyrannosaurs as well as all theropods having lips quite convincing.

P. S. Feathered raptors can be scary! At least if people stop imagining them as fluffy chickens. A more accurate analogy would be that of land dwelling eagles.