Now that egis can't die, there's no reason for them to exist as a separate entity. For anyone who sees them as little more than an extra DoT, you are now seeing what the purpose of micro-management of the egis prior to 5.0 was, to keep your "extra DoT" alive so that you were earning all of that damage from your pet.

Without the threat of death on an Egi, there is no need to even recognize they exist outside of their placement for Devotion or if you're optimizing, having them start close to a target to begin attacking faster. Is it any wonder they feel like dead weight?