[sawaruna]

It's maybe my perception, but I don't know if 'is this cheaper form of payment directly to you less safe?' is a question many users would be having. To me anyway, it seems like an excuse to namedrop a bunch of services where direct payment is offered (again, primarily for physical goods) so users can have a list of these in their mind provided Apple cracks down on this.

[nrmitchi]

That's totally possible. At the same time Apple has been pushing "We have to protect our customers, that is why everything must go through the App Store" as a reason for their policies for years.

That argument definitely implies that non-App Store methods are unsafe.