See, I don't see the problem in that. T-Rex is great. If anything, Goldblum was a more cliche return.
That very first T-Rex appearance when he killed the other dinosaur and used his famous roar was cringeworthy at best.
Not only that. The director decided to do that exact T-Rex roar/pose again in the last 5 minutes of the movie.
It felt like the director had his inner child direct those scenes again. It was so unnecessary.