It is all a lot speculation since Lucas didn't really seem all that concerned with continuity when he made the prequels. While the Bo'Shek/Kenobi dialogue is all tongue-in-cheek, the Chewbacca stuff just doesn't have a basis. Until the Clone Wars cartoon, there really wasn't any reason for Chewbacca to even know who Anakin was besides stories on the holonet. To assume he was concerned about protecting children that he had no reason to know existed is quite a stretch. To think Yoda is sitting on Degobah, chatting with Qui-Gon saying "This Wookiee I knew once, Chewbacca he was called. If meet him Obi-wan should, great help he could be." is also quite a stretch. Qui-Gon in general kind of muddies up the OT.