If it's magnets holding the top and bottom together, wouldn't it snap shut when you're assembling the board and therefore scratching the ano?
I've tested this for around 3 months now and haven't seen any scratches, especially in the contact area, although yes it will have more risk compared to a conventional lock mechanism
By design, it has a slight tolerance that minimizes this from happening
Pros you can easily assemble without any screwdriver but cons you need to be more careful compared to screw mechanism