what side do you stand on regarding the fingerprint sensor?

Side A: all fingerprint information should only be accessible offline, on your device and your device ONLY

Side B: fingerprint information should be able to be accessed in the cloud and via 3rd party apps

I understand Apple's reasoning to have the information only available on the device, but damn would I LOVE to be in a world where I never have to input another password again.

What is the worst case scenario for fingerprint information linked to online passwords being stolen by malicious hackers? What sort of things outside the box do we need to consider?