CLUCK CLUCK MOTHAF*CKAS

Because they talked about how the park owner (I have forgotten his name, mr helicopter) asked for dinosaurs that were not accurate but were more appealing. It was based off what people wanted to see instead of what was accurate. It makes sense from that viewpoint but yeah, it would have been just as easy to make them accurate

Ah I see, I think I missed that part. But who wouldn't want to see a huge AF ferocious chicken?

That is a good question, I imagine it would be a minority

It is fairly unlikely that Tyrannosaurus rex, as a species, possessed a thick covering of feathers (though its cousin and closely-related species, Yutyrannus huali, did). :P
This is due to the fact that as a creature's mass increases, its rate of metabolism is generally slower. Feathers as insulation would not have been of too much benefit, as there is not much heat dissipation and the geographic range of T-rex at the time was likely not freezing cold.
HOWEVER, it might have had a light covering or patches of feathers, like its feathered cousin. The palaeontologists will keep us informed, I'm sure.

plus on top of all the science reasons and explanations given in movies, it was a sequel, they kinda had to keep the dinosaurs similar to before