I have considered the way the code evolves too Tracy... And while I think it's mostly an oversight by Lucas, I think you can definitely make your own conclusion based on the films too... So for me I think Yoda/Obi-Wan are in doubt partially about attachment. That sometimes pushing for all emotional ties cut in their Jedi was partially what led to their downfall... Think about it though, it wasn't just Anakin when you think about it some Tracy, it spread to all Jedi...
-Emotional attachment to their troops... Some may disagree but I felt like Obi genuinely cared about his Clones... He treated Cody like a brother in arms, a friend, and like they had both seen some hard times over the years but trusted each other and cared for one another. Could it be that this attachment blinds the Jedi then, when Order 66 is executed? Yoda seems to see what's coming, but Obi-Wan is clueless... Mundi seems to sort of catch it at the last second but too late to stop it, while the others we saw seem to just be oblivious.
Anakin does something similar at the Battle of Coruscant where he's intent on helping his Clones but Obi-Wan keeps him focused, reminding Ani that they are doing their job for Obi/Ani so that they can get THEIR job done...
-Obi-Wan's attachment to Anakin... Obi-Wan freely admits to Anakin at the end, that he loves him. He thought of him as a brother... Likewise, Anakin though of Obi-Wan like a father. That's distinct attachment, however Obi-Wan's seems to blind him somewhat to the things Anakin is capable of. Is it good or bad though? That's a tough thing to determine... Their attachment to one another may have been what made them such a powerful duo too.
-Luke's attachment for his father... Luke's attachment leads him down a dark road, to the rescue of his friends and his subsequent first encounter with Vader. That goes bad, obviously. But later it's Luke's love of his father, his acceptance of him being the man under the suit, and his desire to bring him back, that ultimately is what taps into Anakin... Anakin's internal struggle is evident on Endor when he clearly is remorseful. Also on Bespin he says he wants Luke to join him and overthrow the Emperor... Not "good" per se, but better than saying, "the three of us will be unstoppable" too. There's attachment set there clearly, then their bond grows stronger as they can clearly feel one another nearby... On Endor it manifests itself in some regret in Anakin, and then on the DS2 it seems that finally Vader's inner-struggle is completed as he witnesses his son being tortured by the SOB that has ruined Vader's life... Anakin finally takes control over his dark side, redeems himself, saves his son whom he loves...
Ultimately at the end of the story though, it seems like attachment is what saves the day. I think there's a distinct "letting go" of, at least some of, the old ways. The EU obviously shows us a change in the order after ROTJ where a Jedi may take a spouse... Luke does, Kyle Katarn takes Jan Ors... It seems like Jedi are more free to live a life outside the order. At least that's the EU way of covering things... Lucas may disagree with that some day.

I have thought though myself that Obi/Yoda maybe, at least in part, regret the ways they tried to keep Jedi to the "old code" of things. QGJ seemed like a Jedi who didn't adhere to the old ways entirely by things Yoda said, so maybe Jinn was just one of the first Jedi trying to change the order... Dooku too, who ultimately bailed on it and turned to the dark side. Maybe though, had the order not been so strict, Dooku wouldn't have been lost?