he refers on how these models are just very old, same with the marine/sailor ones.
those models are legacy models that haven't been changed because:
1. you have to pay model makers to remake them
2. you have to get permission from the model owners (who might not be around anymore...)
3. i don't think the model makers consider it a high priority
now, would it be nice to have them? sure! but don't expect them any time soon...