Had an update on my Support Ticket, after I updated it to ask why they had sent me the exact same TGSP the 2nd time...
"This is Drew from the support team and I am handling this ticket.
I want to explain this: To ensure the curved screen protector offers optimal protection while maintaining the sleek look of the OnePlus 3, the colored border extends over the edges of the display by approximately 0.9 mm.
This mean that it is design not to cover the edges. You can have it review on our official website https://oneplus.net/oneplus-3-curved-tempered-glass-screen-protector."