They blatantly lied. A third-party auth provider, where trust is absolutely crucial, and they lied about being breached. Repeatedly.
And even now, they are not coming out and being honest like "we lied because we were scared about liability, but the person behethis decision has been fired". It's not good enough.
Sorry, but they have some serious work to do if they want to regain that trust. I for one, will not be using their services again.