Yes, but this is not rares we're talking about, this is about achievements. If a rare was made more common, that would be unfair towards people who already got them the hard way.
People who have hero items today got them when the server had much more players. It is simply not possible to get 500+ EK anymore because not enough people play the server.
Chances are the server would be shut down before you even reached 200 (and that could take years).
So as it stands, hero items are useless, because they cannot be obtained due to the low player base. Unless EK requirement is lower, or EK rate is higher to compensate for a lack of players.