Possible scuffing of Ryzen 2600 IHS after using artic mx-4

So I recently built a new pc and was not particularly happy with the CPU temps after using artic's mx-4. (I thought that I might have gotten a fake mx-4 from amazon, it wasn't). After cleaning the IHS I noticed subtle but rather annoying scuffs on the CPU. Turns out, that artic actually use alumina oxide (>50 %w/w) and monocrystalline diamond (5-10 %w/w) in the mx-4 paste. Problem is, while these substances have great thermal conductivity, they are also very hard! Both alumina oxide and monocrystalline diamond have a mohs hardness of 9. I honestly don't think that the softer nickel-based heat spreader on my CPU had a chance.

While the scuffs on the CPU are minor and don't really impact the performance of the cooler/temps, I think that people who are annoyed by scuffs and scratches should be made aware of this. If anyone who knows more about this topic or has had a similar experience, please let me know.

Here is the link to the mx-4 datasheet: http://arctic-m.com/wp-content/uploads/2018/03/mx_4_material_safety_data_sheet_msds.pdf