Pushing and Pulling

In the book Bodyweight Strength Training Anatomy by Bret Contreras he talks about how to get stronger, and what the best way to get stronger is for your bodyweight. Bret Contreras states that "It's important to understand that bodyweight training is highly skewed toward pushing over pulling." I completely understand what he means by this. It's easier to push something that's heavier than you are, than to pull it towards you.

Pushing exercises are things that you would do on a normal chest day that work both triceps and chest. For example, bench (normal, incline, and decline). Pulling exercises are things you would do on a back day like deadlifting, dumbbell or barbell rows, and other things along those lines. Pulling exercises are dangerous because most of them work your back and if you pull wrong you could possibly mess up your back. My question to you is, why do you think pushing exercises will help more than pulling exercises?