I returned my previous dodgy MBP (already included in your count) earlier and exchanged it for another one.
This one has the same display: 9C68 (matte)
The yellowing is FAR LESS noticeable than the previous one, however the bottom inch or so of the screen doesn't look as evenly lit and is a tiny bit yellowish compared to the rest of the screen. Another week 23 build.
I have one dodgy pixel towards the bottom of the screen, right in the middle though which is bugging me 🙁 It looks greyish-black on grey/blue backgrounds. Can't see it on a black or white background though. 😕
Am annoyed about the pixel, I know it's only one but the previous MBP was pretty much a lemon what with the yellowing + kernel panics issue.