It will give extra incentives to properly evaluate content. Don't really want to get into details here, but it's not really throwing darts at a board as many people are claiming. The steem system needs tweaks to motivate better behaviors, and a functional system will actually get us very far. Everyone is so anchored to their ways and resist change. To be fair, many believe the changes may be too much, but I think that they are in the right direction and well motivated. Equilibrium will shift, and will attack the behavior it is designed to attack (you can read some thoughts about the specifics in my blog if you want).
To reply to a specific comment in the main blog,
does the curation split or reward curve of the STEEM token really matter? Does it help us achieve that goal or does it distract from it?
It does matter. Proponents of EIP are saying exactly that better economics will get us a better platform. Yes, we are building good bridges into other types of systems and that can happen in parallel, but the biggest one of all: Steem, could use some TLC. We can push for changes that improve both the main system and encourage SMTs.
Keep in mind, it's not actually that much more time to incorporate these changes, compared to other goals. So I say tweak them. The whole mechanism is a game, and like any other game, it needs balance changes over time to correct the meta.
RE: HF21 and the Steem Vision