> Interests of the existing PKI industry may be the source of some friction, but the bigger issue is that DANE depends on DNSSEC, which is not widely deployed, and sometimes actively avoided due to its complexity and ease of breaking you site.

I have a feeling it is "actively avoided" because vendors don't want to lose control of the cert ecosystem. Allowing user to just generate a domain for themselves means it will never get logged in central log and so can't be automatically found by crawlers by the big guys