I think you're confusing the concept of a story with its vehicle. Aesop used animals. But he never used personified loaves of bread. Jesus didn't even use animals, which are animate, let alone personifying the completely inanimate. It is part of the general dumbing down of our society today - a people who can hardly even read George Washington or Ben Franklin in the original (ie, their own language), let alone Plato.
Didn't God make a donkey speak? Was it not Jesus who spoke of living water? Then explained the meaning. It was Jesus who told the story of a the Prodigal son, the Rich man and Lazarus, the Sower and the Seed. The seed represented the Word of God, the Scriptures themselves. So Christ himself took an animate seed, to represent an inanimate book. Let me clarify that I am in no way putting the Holy Scriptures down, and that the word Bible means book. I believe the Scriptures to be living, but it is still a book. I do not believe it is dumbing our children down, on the contrary I believe it is letting a child be a child, and yet learn something. Should a video take the place of the parents teaching? Of course not, but can a parent use it as an opening to talk to there child? You bet.
Don't you consider it just a little odd that kids can't accept stories like David and Goliath as told in the Bible and that parents feel that they must change the story to deliver any message/teach anything?
"Dad I just saw junior beat a giant pickle with a stone and a sling shot." "Oh, do you know what that story is about." "I just told you dad." "Well actually it is from the Bible story of David and young boy and a Giant named Goliath, and how God is always in control and there for us in our worst and scariest times." Based on a true happening with my now 12, but was around 5 or 6 year old. Now he reads the Bible story from the Bible and it is even more then just a history story but a story that he can take something from.
You ask if I find it "odd"? No, on the contrary I feel it is great to have so many available helps out there to teach young children the lessons of the Bible on a level they can understand. The appearance of the characters change, and really that is only in a handful of the videos that are biblical characters, but the most important things is that the message is not changed. That is why there is so much debate over Bible translations is because some have changed the message. I do not know if you have ever preached a sermon, but when I have it is amazing how many different responses you get from people on what they got from the message. Does that mean I did a bad job preaching? It can, or it means that that person needed to hear what God wanted them to hear from one part over another. Take the parabel of the "Good Samaritan", some might hear it as a story to love your fellow man, another about giving of yourself however you can by food, money, or time, and some about race not mattering. Same story, it just depends on were the persons need is. That is what the veggietales videos do. They open a childs mind to see what they might not otherwise see, and if the parent does not run with the childs questions about the show, then they are failing as a parent. Open you mind to new things, remember Christ's concepts that he taught were new, and the look at what happened do to the close mindedness of the Pharasees.