Most of us know that "the cover-up is worse than the crime." But when it comes to creationism, the thing to remember is that creationism itself is a cover-up (of a failed "science"), so of course they can't admit any errors. What would you have them do? Do you think they'll say: "Yes, in the furtherance of a grand pack of lies I told a fib?"
I wonder how if they debate this topic in Japan, where shame has meaning?