Earlier than the present canon, there have been a couple of Wookiee Jedi, like Lowbacca (very unique identify, I do know) till George Lucas himself made it a mandate that there could be no extra Wookiee Jedi.
Based on Lucasfilm’s Pablo Hidalgo, it was after idea artist Derek Thompson prompt a Wookiee Jedi for “Revenge of the Sith” that Lucas determined to roll again on the idea. This seemingly occurred as a strategy to forestall an explosion of extra Wookiee Jedi whereas Lucas developed the planet of Kashyyyk for the final of the prequel motion pictures. Ultimately, he went again on this and determined Wookiee Jedi have been uncommon quite than present, which is why the droid Huyang feedback on how uncommon Gungi is among the many Jedi ranks.
That is removed from the primary time Lucas has gone again on one in every of his personal mandates or concepts for the sake of a cool second or character. There’s the time he all of a sudden determined Maul wasn’t lifeless anymore, regardless of being vehemently against the concept for years earlier than that. Like with Maul’s return, “Star Wars” is healthier off with Gungi in it, as a result of the concept of a Wookiee Jedi — particularly that being uncommon — is simply too fascinating to go up.