It's perfectly normal, our brain simply doesn't work that way. Especially when Robo has been released for this long(VHS,DVD) and BD has only been available for a while. Without the help of HD. Other then who were REALLY in the know. No one can spot it.
There are QC issues on the piece, no doubt about it. Yes, they shouldn't be there for the price. Yet, Fred is aware of the issues and his team will either fixed or adjusted them. But don't jumped the gun like many here do. That was why I needed to contact Fred and get a clear picture when I got mine. What I want to do with that info is my business, I simply don't have to share it JUST BECAUSE some "fans" ordered it too.
Take Vader's helmet for example, there are just too many things that's going on on the helmets, that only "dedicated" fans knows. That goes without saying. Like any other cases, there are always these people(call themselves "fans", "think" they know stuff) just like to talk about anything they have zero knowledge of. But hey, it's just another day on the freaks board.