Cloudflare/DDoS-Guard doesn't care about you. You don't do enough business. The DDOS protection company cares about the reactions of the abstract things called corporations and institutions. Corporate persons have different motives than human person do. I don't think it is controversial to say most corporations and institutions have no problem with this decision. That'd be despite what any informed IT dept. employee might believe about the situation.

So yes, they worried about their income.