I never understood why anyone cried over this. How do enchanters lose any chance to make money? Enchanting mats and scrolls still sell for ridiculous amounts on the AH (at least on my server). Most of the random ones in /trade still get tips for doing enchants too.
Before that DE button was implemented, the "fair" way to DE group loot was for the enchanter to roll Need on it (assuming nobody else wanted it) then DE it, then highest /roll gets the shard. The DE button just made that whole process a lot simpler. Back then, enchanters who rolled need on stuff just to shard it but then kept the shards for themselves were considered ninjas and dealt with harshly.