Basic Common Sense
One would hope that the financial regulators would have something to say about this. Any bank that signs up to this "in the interests of the customer" is just plain stupid. I fail to see any benefit for the user but huge benefits for the endless data grab that Facebook is doing. Facebook execs would sell absolutely anything to anyone to make money.
The current vomit-inducing adverts on UK television about how "Facebook is changing" are just laughable. Like any big tech (and by inference US based) company. That have repeatedly shown themselves to be utterly untrustworthy with anything but their own money. They will do absolutely anything to duck and dive privacy and regulation. The only people that look to be taking this on are the Germans and possibly Vestager in the EU.