DANE doesn't remove the requirement to get a 3rd party to vouch for your keys; it just locks you into one very specific 3rd party, one likely subject to de jure control of a state.
More to the point I would trust IANA and ICANN, faults and all, to not screw up the DNS/DNSSEC root, much more than I trust every CA in the default browser trust stores to get X.509 right all day, every day.