I believe the change was put in because of customer complaints back in the late 90's. And yes putting it in caused a calvacade of responses that Red Hat was the AOL of Linux.. or was that the Microsoft of Linux.. ranters couldn't decide which was worse and the flame war ended up with them tearing up each other over it.
In the end it was pointed out that is an alias which pretty much everyone of the ranters really didn't run into because well they had already made their own .bashrc as good hackers should. Those who had not.. well it was a good exercise on becoming a hacker in finding out how to ignore it.