That's the difference between "sign of protest" and "act of protest"
Not being in top20 makes it impossible to act, I'm just signalling disagreement.
Preparing hard fork (we, as Steem community, witnesses and devs did that successfully many times, but it require a lot of work, preparations and tests). To make it safe, we should use certain procedures (voting for fork after given block) there's no conditions for that at this moment.