My short amateur review:
The card looks nice. I did a quick attempt to remove the sticker without damaging it with a normal knife and got an area of about 2x0.5 cm off without bigger problems. I only cut from one direction so I think it might be possible to remove it completely with a scalpel whilst cutting in a circle. The sticker could be reapplied and still left the security pattern when I pulled it off again. It was easy to scrape off the sticker leftovers with a knife.  It’s easy to remove the print with wire wool, but I don’t think that will be a problem with regular use.
My uneducated advice would be to perhaps rough the private key area up a bit and apply the seal with some pressure?