This comparison is a canard.
In the game of "telephone" a message is whispered once in an ear.
In Hebrew tradition, the message is taught, memorized, and continuously repeated back by the student over a life time, within in a community of people that can correct errors in each other.
Try this kind of game of "telephone":
1) Take 100 people in a room. Spend several hours working with them until you are positive they have the message correct.
2) Have 50 of them teach the same message to a room full of another room of 100 people for hours until they are convinced it is correct.
3+)Continue for a few dozen times...or if your simulating the number of generations until the NT was written you were done before step 2!
The message will be dead on. Because the mechanism is far more reliable then whispering once into an ear.
Even as someone who is no textual critic I know enough to recognize the quackery involved in the "telephone" game analogy!