This may well have been what led to embedded tooltips and the tutorial that so many first-time players are raving about in the professional review scene. We never really think about how important thankless work like that done by Hanna's team is until we stop to think about it. AsIf you read the entire dev diary, you'll see that they perform many tests, and one of them at least involved total newbies.
ashbery76 said, the portraits alone may have caused a war if they weren't caught!
Glad we got this dev diary. It's important we appreciate the fact that not only are the devs asking players what they like and dislike about the game, but that there are professionals who are able to turn that feedback into actionable data.