I personally do not see it, but that's just me. I am not a fan of grading in general, and don't have any desire to seek out someone's arbitrary opinion regarding the condition of my items...
As for protection, I think these things look a lot better in an acrylic screw-down holder (or something without a bar code). To me, the bar code is ugly and modern - and it clashes with the otherwise beautiful memorabilia contained within. I see it as a violation which sort of goes against the original reason for collecting these artifacts from a more innocent time. Just my 2 cents
