The Application Steemit need to re-organize itself, and also change the structure of its Reward Pool mechanism.
The Proof of Brain mechanism on Steemit does not fulfill its job in curating the best content. I would like to see, with the introduction of Communities (Hivemind) and SMT, that the Steemit Application gets separated from the Reward Pool distribution and Steemit should become a SMT by itself.
By doing so we would have the ability to put Communities in charge of the Proof of Brain (Voting and Curating) responsibility and the experts in there own community would transfer the value to its members. We than could see many different Blogging Application competing for their audience by rewarding them with SMTs that are linked to the Steempower that drives this Blockchain.
In your comparison you looked only at the Steemit Application and not the overall Steem Blockchain ecosystem. I;m not very convinced by the rules that Steemit is running on, but I see huge potential if the right changes are made.