Over time the LS5 will sharpen a bit better but will never be as clean as aftermarket steel.
I see this with Bauer often. When we get in any of our shipments its one of the things our staff is instructed to check for and if a skate has any issues or defect, such as this, we send them back to Bauer for a replacement. Yes, we could go through the hassle of removing the rivet/rivets and replacing them ourselves but I would prefer to just have the manufacturer handle it. I would recommend taking a picture of it before you replace the rivet, which I would recommend doing proactively, and if the holder eventually does fail you have the picture to send the Bauer.