Earlier quoted context omitted.
This is a bank to bank fee. The merchant's bank will charge the merchant a higher fee than this. The banks take no risk here because normally they any fraud get's paid by the merchant through charge back. The only risk is that the merchant goes away completely, but banks have to deal with that possibility all the time.
The payout to the merchant is delayed, isn't it? So if they go away, they don't get paid anyway?
I believe bigger merchants with better credit ratings can normally negotiate faster repayments.