Car vs. Bicycle - what's the big deal

This is kind of old news but I hadn't heard it.  I guess the ad above really set off a lot of negative feedback such that GM basically apologized and pulled the ad. 
I get the ad, but it doesn't offend me.  Sell cars to people who want cars and do it however you want to as far as I am concerned.  I'm sure we could dig up an ad somewhere that a bicycle manufacturer is mocking a car to make a point and sell a few frames.
Let's all just relax.