Yes it does because
- The customer has the physical iPhone
- The customer 'is' the owner of the fingerprint
But no it doesn't because
1=>2 : If you steal the customer's iphone, the fingerprint is now something you can get.
The UK Financial Conduct Authority have, for instance, approved Starling Bank which is advertising precisely this mechanism. I'm sure they aren't the only bank. But access to a bank account would justify the cost of forging a fingerprint.