Well I've personally checked a Galaxy S3 and a S6 edge and they are fine.
Also, from the Note 1 that had this problem, they didn't repeat it again..
It is not the "Mura effect" that amoleds suffer from.
Just very bad calibration here.
This can be fixed in the next firmware IF microsoft find out about it. I do not think they are aware yet, or if they are, they do not whisper a word about it....
So far, except a blog post on GSMArena everybody ignored me.
Even Windows Central.... I'll try and engage Daniel Rubino on twitter, maybe it will be successfull....