Basically by a lot of power I am talking about the people that can take a post up voted by 100 people and drive the value of that post to $0 with a single vote.
They may have to use several accounts as several of them have spread their power across multiple accounts.
So, in order to survive, people have to have thousands or even millions of people upvote their posts to survive those storms.
Yes. Though @acidyo did confirm it is linear power not exponential like the old steem/steemit days so it isn't quite that bad. There are some people it'd take thousands of low end votes to even remotely counter though.