Seems like a particularly poor article. The title is an unsubstantiated claim based on the author's passion project, rather than any sort of real analysis. Ok, so banks do loss-leaders and cross sell. SO does your supermarket, payroll provider, and many, many other businesses. Yes, that means that the things they cross sell will be more expensive because they have to subsidize other parts of the business - but without that entry point to the customer, they'd be paying google and all sort of other marketing companies to deliver customers for each segment of the business - and they'd have to overcharge to fund that marketing as well.

Or if the argument is that he plans to charge fairly for each bit of the ecosystem, he's about to learn some hard lessons in strategy.

To the author: I hope everything works out for you - but do some research first; you're underestimating your competition.