This isn't something new. Air's have had it since their redesign, so have the older retina machines.
I find it ridiculous some people have been petty enough to swap out 4 machines due to something like this. I'm sure some people will say "put I paid a lot" Sure, but it's not as much as your car and I GUARANTEE people don't swap out their car for every little creek and wiggle.
Some of the OCD on here is enough to make me laugh at people and wonder if they really have that little going on in life that a creek is a big worry to them.