I think it's cute that he thinks someone could build and maintain well all the things he wants for less than 5% in commission and also not pass along processing fees, on what he admits is a micropayment processor. That said, I don't understand the motivation for Patreon's decision to stop bundling payments, unless they're being forced to by issuing banks or payment processors for some reason. EDIT: Thinking about it…
The way I understand it, the motivation is that they're losing money on bundled microtransactions until customers cross some monthly threshold (let's say that's the $14.29 mentioned in the article). So let's say a customer has a $1 monthly subscription to Creator A, and another $1 subscription to Creator B, adding up to a bundled $2 monthly charge to their credit card. That's apparently below the price point where the provider is able to offset the processing fees. Whereas if they have two separate $1 charges, that reduces the loss somehow (I'm not a payment processing expert and I didn't read the fine print that the author posted, so I don't understand exactly why that's the case.)
I wonder if the "solution" would be for Patreon to have a minimum subscription model, where each customer is guaranteed to pay, each month, an amount that's above the threshold required for Patreon to avoid a loss on processing fees. You sign up as a patron, and you're automatically dinged $15/mo as long as your account is active. You can choose to route those $15 to whatever creators you want, and you'll see a single line item on your bill. And then obviously you can exceed that threshold if you want to support more creators.