No, it's not the truth. It's just your opinion (which you are certainly entitled to, but it still doesn't make it a fact). You are way too caught up in the whole "retina" marketing hype, so you see what you choose to see. I use my 13" MBA all day long, and the screen is perfectly fine - vibrant, accurate colors, sharp and bright.
As others have pointed out already, the difference between "retina" and 1440x900 screens on 13" laptops is not nearly as pronounced as on retina vs non-retina iPads.
In fact, I would not want a retina display on Air, as long as it comes with all the drawbacks that it brings to rMBP.