You tell me why a company like theirs, which should be mature, ditched their proprietary support and ticketing system (which actually worked) for an shoddy, misconfigured off-the-shelf product which has equally little excuse for being that bad.
I think it's customary here to be unfair to companies, even when they're doing "the right thing" as DO is right now; but DO has spent their customer patience budget elsewhere, so I'm not going to be surprised if people view the post mortem as an inadequate replacement for getting it right the first time, rather than a followup to an honest mistake they will actually try hard to avoid in the future.