Kind of weird that this is now just how we depict a T-Rex. Like, we know that the thing likely had feathers. This meme specifically references that it was the ancestor of a bird. Surely anyone who gets this meme wouldn't be surprised that the T-Rex had feathers.
But if you actually depicted it with feathers, then no one would know that it is a T-Rex that you're referencing. You have to depict it naked for the meme...