Also keep in mind the possibility that the manufacturer (Kato in this case) may not be aware of any issues. Remember how surprised we all were to hear that Kato was unaware that their GG1 wide-stripe scheme was incorrect. After I informed them, I provided them with the proper specs at their request. Everything doesn't always get researched to the Nth degree, as disappointing as that is, and sometimes data and photos are misinterpreted. On a lesser level, look at the first ESM Conrail ex-PC XIH scheme. I thought the road number was one thing, and then we dissected it here by scrutinizing the lone photo and discovered it was not what I had thought.
I'm not defending, just pointing out that it could be due to lack of knowledge as opposed to cutting manufacturing corners.