It is because heavy loot bags drop more often now. Increasing the supply of some t6 mats. Just like the Orrian loot box increased the supply of lodestones. Both t6 mats and lodestone price are decreasing.
You can still stack might with comet and magnetic wave. Yes offhand dagger has more damage skill and a extra heal but with obsidian flesh or swirling winds you will negate damage. Swirling winds will negate projectile damage for your group.
Players with this weapon do not expect pity. They expected the weapon to be of legendary graphics quality. From the way A-net talked about the 2h legendaries most player thought that all legendaries would have similiar effects footsteps, Aura, weapon effect on attack, so on. When a legendary does not have any of those you question why does A-net consider this a legendary?