Almost all the others have higher margin rates. M1 is like 2% or so. Fidelity, Schwab, etc are like 8% or so, and BOA/ML is like 5% or so. (rough numbers, I haven't checked in a while).
But yes, they basically all do this, though on their debit card products, not their Credit Card products, I assume the original commentor meant Debit Card and not credit card.
