Why do you think 'eyeballs' wouldn't play a (big) role on a blockchain application like STEEM(it)?
Imagine for example I am writing an article about Steem Monsters (or any other business built on STEEM). Then I think it does matter if 50 people are reading it or 5000, if I assume that a certain percentage of the readers gets interested in Steem Monsters and decides to buy Steem Monsters cards with ... STEEM! :)
Apart from that, as many well informed poeple (including you) are so eager to test the planned HF changes, I would say "Yes, lets try it now, don't lose more precious time (apart from testing) and just see what happens!"
Then at least we cannot say we hadn't tried it out ... and then I really hope my scepticism proved to be wrong.
RE: HF21: What Makes Steem Valuable?