It's pretty different than Ion in that it stores the DID Document directly on-chain, so ofc it's less "efficient".
As for the broader sentiment, agree to disagree 🤝
Discussion
maybe you are just retarded if you think such an inefficient scheme can be useful for anything in practice
or perhaps you're just interested in keeping your job
in any case I agree with you that this is at least better than ION, since it works and is simple
Do you normally expect people to engage with you when you lead with "perhaps you're retarded?" 🤦