The ole cloak and dagger (Karma changes)

If anyone here remembers the old karma , her main damage was her ulted shield. When they reworked her it became her hadoken. That is ok because her shield still damaged AoE making her solo lane viable for pushing and farming. Now they have removed the damage all together from her shield. In return I can now accidentally snare a lane minion when I'm trying to root my opponent. I don't understand why this change was needed. Karma wasn't even a top tier competitor. Why take away a large portion of her damage? She is a worthless solo lane and duelist now. and with every single new champion coming out having some broken dash mechanics landing her Q is difficult. But now you can't even secure damage with her E because THERE IS NONE. Have you guys played Karma since 5.1? She is worse off than she has been since remake. Am I missing something? Was she so OP they had to remove her damage? Was the goal to make her into a viable jungler? Because she isn't. I don't get it.