It depends on the type of post. Long form blogging, yes, few will be capable. Other types of contributions, it may be easier. People can and will decide who to follow and what types of content they want to see. That doesn't mean all of it will necessarily get high rewards, but the rewards shouldn't be arbitrarily decreased based on a fixed quota.
Another way to look at lower rewards for people who post more is higher rewards for people who post less (since the system, at some level, is zero sum). Why give extra rewards for posting less? I agree with removing this rule and letting followers/unfollowers/muters/voters/downvoters decide what is best.
Agreed.