In representations to your customers or in public communications, you agree not to mischaracterize PayPal as a payment method. At all of your points of sale (in whatever form), you agree not to try to dissuade or inhibit your customers from using PayPal; and, if you enable your customers to pay you with PayPal, you agree to treat PayPal’s payment mark at least at par with other payment methods offered.
So my interpretation is that this is to avoid merchants from pushing cheaper payment methods by saying negative things about PayPal or making it harder to find or use. I'm not sure this is as dramatic as the title makes out. Am I missing something?