What was established in 1982, by the then artist and colourist and writer would have to change because
1: The drawing and colouring technology is vastly changed and improved.
1: Greater information is easily accessible.
3: The character has physically changed...as these characters do over the course of their in universe time.
And still...Since inception and across her entire publication history, Storm has been rendered by so many different artists each with as varied a style from the last. Yet...whether it was with a dark brown, light brown or medium brown complexion...finer or fuller features...braided hair, wavy hair, curly hair, straight hair...a fuller figure, a more athletic body...all due to artistic style and interpretation yet we all, most of us anyway who've been reading the X-Men for decades, see her and accept as Storm (regardless whether or not we hold her up to be a bastion of Black Woman representation...as fictional characters go, I don't). Why can't the same acceptance of artistic license be applied to Sunspot? (I am not referencing the movie) Because, as I pointed out earlier, he too, like many other characters have looked different, but not significantly so as in XMR, from artist to artist. It's not some deep-rooted insidious agenda by Casselli and other artists as you and a few are purporting.
The rate by which this topic comes up every few months, everytime an artist depicts a POC slightly different to what been "established" decades ago, you would think the entirety of Marvel is just filled with creatives who have racist agendas...and if that's what you and others think and believe, I have to ask...why are you still financially supporting them?
point to note:
Enoch was born in 1988.
Roberto Da Costa was "born" in 1982.