I agree partially, but also disagree on some points.

Definitely the things Steemit Inc did wrong in the last 2 years could fill an entire "how to not do blockchain business book". And I also do agree that parts of the share for DAO could come from the witness pool.

But I don't believe that the "posts" on this platform is the most important thing Steem has. Unless you can show me any post on this blockchain which ever went viral and got reach far outside of our own community.

I believe that Steem has to become a Blockchain for applications and slightly move away from having "blogging" being the main business model.
Because the number one thing which allows Steem to maintain value is applications and not authors.
Tell me anyone who invested into Steem to be able to upvote their favorite authors. I don't believe you will find any significant quantity for that. People have to be incentives to invest into Steem for resource credits to run their applications on top of it. Where Steemit should only be one on them.

Apps like Splinterslands show the possibilities there are on this front.
Unfortunately the economic model is broken for too long and these economic changes in this hardfork maybe too late. But, at least it is a step forward finally.