I'm hung up on the idea that challenges keeping a log list updated disqualify CT, thus motivating deployment of DNSSEC, a protocol so dependent on a clean connection to the Internet that its deployment in browsers on modern operating systems was derailed.
I acknowledge that embedded systems are a difficult place to do the policy-driven cryptographic security that we're talking about when we talk about the WebPKI and DANE. They're difficult for all sorts of reasons and they're difficult for all of software security, not just this. But they're pretty clearly also not a motivation for the deployment of DNSSEC; in fact, they're a sort of worst case for DNSSEC.
That's what this whole long subthread is about. It wasn't a strong argument. The thread has mostly been attempts to lay out why it isn't, without any interesting evidence for DNSSEC's suitability being presented.
