I don't think anyone is arguing against more funding and support for core blockchain development and other items in the development pipeline and hopefully HF20 will help alleviate the onboarding costs because what we have now is not a scalable solution, as you've shown.
I think what @rok-sivante is proposing here is something that's been on a lot of people's minds in the Steem community recently - especially since the "aggrandizement" incident - and I'm happy to see proposals like this being presented in a clear and well-thought-out manner. Even if it doesn't end up getting implemented it's good to bring attention to the subject and let the powers that be know what the community is thinking.