A) Yeah, that may have been a better way to find out the Barbapapa link than I did...but either way, I think it definitely is just a reference to these characters
B) I couldn't find anything else on the site either (now, granted, I looked at it in French and Google's translated versions, and I am not completely fluent in French, so I could have missed something)
C) I think the "official resources" is a reference to use the OFFICIAL site for Barbapapa...which is what lead me to rearrange the grid in the way that I did.
D) Agreed...