Printed cards which are currently below a certain power bar should not receive errata to raise their power level. Errata should be saved for game breaking situations, unforseen interactions, and missed text.
No matter what is created there will always be a hierarchy of power. The best cards will rise to the top and the weakest will sink to the bottom. This is the nature of all games similar to mage wars. Instead of looking backwards we should look forwards and welcome what is being added, as quality new options are coming and academy fm/warlord proves this.