Well, they seemed related, because only bank account information makes sense on some receipts and payments. Including bank account information on these forms makes sense when you expect customers to send money electronically, or if you are confirming where an electronic payment is coming from. Including account names from your chart of accounts is essential on journal entries, because you are debiting and crediting those accounts.
But why would you want to tell a customer or supplier which internal account you are posting a payment or receipt to? It is none of their business, and they have no idea how your chart of accounts is constructed or what kind of transactions you post to which accounts.