For the cold plate, you just need to wipe it clean off some of the grease. And yes, the cold plate can be finger print magnets... sorry 'bout that
Marks inside the screw holes in the photos should not affect performance of the water block...
Edit: I also pointed out in my reply that the photos are zoomed in about 40-50x (4mm screw hole to 20cm), which may amplify things. Thanks for your post here, I will try to include here all the points that was in my email reply to you.
Hi, it is actually still very bad optics, as I can not trust this product as-is now & will not be able to use it in any upcoming build, due to this quality concern (given the risk of the entire top cracking, especially with the pump mounted to it).
I could see the defect with my naked eye but the photo was a close up to illustrate the point. The idea was that you could then ensure it does not happen again / follow up with the factory / do whatever that is needed to maintain build quality. It is of course, amplified, because that is how the problem can be seen clearly.
If I were to be a nitpicking prick I would not have spent the money to buy this product.