Does Anyone Have a MacBook Air with STAINGATE issues

I am planning on wanting to buy (that's WAS … until I read more and more about the Apple "Staingate" issues on the MacBook's).

I was considering the MacBook Pro 13", or a maxed-out 13" MacBook Air …. and would like to know if the "staingate" issue is just concentrated on the MacBook Pro Retina displays (13" and 15"), or if it also has been found in MacBook Air's as well (especially the 2014/2015 "non-retina" 13" MacBook Airs)?

Any comments will be appreciated.