I'm pretty accustomed to executives making dreadful decisions without the approval/acceptance of other stakeholders within said person's firm. I'd rather know who made this error and not interact with that specific person's department rather than stop doing business (e.g. large ad-buys) with Twitter as a whole.
I don't want this to be a witch-hunt so much as I want the person to just come forward and own the decision, because unless they have an exceptionally good reason for it, it comes off as absurdly high-risk to both Twitter-the-business as well as to all the clients who've likely written serious penalties into their contracts for events like this, which again brings that business risk back full-circle to... Twitter.