I don't see the logical reasoning for numbers going down. When we were little level 10 characters, we had smaller health, did less damage and looked up to characters like Bolvar, or watching Saurfang wipe out an entire Alliance raid who got too close. They and all who had a lot of health and hit like a truck. Part of leveling and growing up was becoming more epic in health, damage, resilience etc and now, that is all being taken away. Yes, the numbers -are- important. They're part of the fun of learning how to play your class, I feel.