EU courts did cap payment processor fees, so yeah that is intended. We can't have companies bottleneck and take excessive fees and thus stifle progress, when a company gets too powerful the government has to step in.
I'll never say no to properly auditing our systems. So sure.
But I also recognize that few out there are pressing strong opposition to the idea of paying 3% for someone else to manage their financial transactions, or to host their own business. If I make a million dollars, paying 50k to Patreon or Kickstarter for hosting the service seems to make sense in my mind