By 'hole' you mean something that goes all the way through? As in removing at least the full thickness of the tube wall over an area that matches the profile of the tyre?
Would you regard the brake bridge as a structural element?
Unlikely to explode and kill you but if it is not as described and it annoys you then I would at least try and get some of the money back or return for a full refund.
"A tiny hole"...
By 'hole' you mean something that goes all the way through? As in removing at least the full thickness of the tube wall over an area that matches the profile of the tyre?
Would you regard the brake bridge as a structural element?