Dear,
Tomorrow I will get my third MBA replacement. My former two had both issues, and the metal enclosures where in both cases not perfect. Both have small scratches and imperfecitions in the metal case and other issues. Very lame for an $3000 product. This is not how Apple was 4 years ago, where you get an absolute perfect machine.
It has everything to do with quality control or the lack off....
With kind regards,
Bas