First, because this kind of issuance by private money has already been frowned upon by regulators, think about Meta so that it can be an acid test for regulators: has the stance changed since the Meta experiment?
They won't care that much.
Facebook fucked up with Libra by trying to make it a global currency and them acting like an international central bank, everyone was afraid it would end up with some crypto coin in their country that claims to be stable, backed by true reserve, and in reality outside their jurisdiction.
This is just Paypal money, backed by usd, running in usd and probably already doing everything under their supervision.
