As is apparent they truly are. But then why did the app accept the passport card scan instead of rejecting it. Most that you say that is clearly posted IS NOT to people with poor eye sight or first time cruisers. My friends were not the only ones with passport problems because there were several other having similar problems.
The website might be clear in very small lettering and many people here at the terminal gave varying renditions on what was required. Clear, probably, in print that can be read by all, not hardly.