I'd have said the bit at the beginning where it forces you to load a save makes it unplayable, so why are only a few images locked out, why package them at all? it's already big, seems badly thought out to pad out the download with stuff that you not only don't need but is specifically barred.it makes chapters 1 through 9 unplayable. It's meant for bug testing and thus we only need to test CH 10. That's why WWG asks to please not share this specific build.
The best approach IMO would be to replace them with a stock image that says something like Beta Placeholder so people know it's not a bug, that it's not a finished release.