I don't quite understand the continual reference to the 2018...

I don't quite understand the continual reference to the 2018 architectural diagram, showing Paydentity and ISXPay as a means to show revenues can't be split by service. The diagram clearly shows that where clients opt for another acquirer (shown as '3rd party acquirer') then ISX are forced to charge for the Paydentity service alone, and potentially the routing to that acquirer.

One clearly automates the KYC obligation, the other processes the payment (in ISX' case, passing this onto NAB)

I also wonder why they continue to refer to it as 2018 - is there a change in architecture since?