Wedge, remember, that 2-4 man Euthanasi squads mean, that you can field huge cavalry armies with MV5 flamer specialists, using grunts costing 28 points per squad to qualify for those cavalry elites (right now you can almost do that - the cavalry fits, but the specialist does not)... it has some serious cheese potential. On the other hand, right now you could field e.g. ten additional activations for 70 points - a huge advantage in the early game. I believe, that euthanasi were meant as sacrifices that would fuel various powers of the Inheritor spellcasters, but they have multiple additional uses, that make the Inheritors quite a powerful army.