On my 2019 Flare Yellow I've never noticed any difference in the 4 years I've had it and I tend to notice these things.

 

I don't have the spoiler since I have a convertible, but I would not be happy with the obvious (to me) different shades of the color on the posted pics. I would understand the apperance of color disparity if the spoiler was in the deployed position due to the angle.

 

Not my spoiler, but my 2 tiny door handles are definitely a lighter shade of white than the rest of the door.

 

My blue door handles are definitely a different shade than the body, either that or the difference in substrate between the door handle and door shell makes it look glaringly different.