The thing about the high drops is as I've said before.
NH players need to look at the high drop as standard. Aiming for low drops makes them take hard tax units and hence the bad performance.
Having high drops works in with our allegiance ability of deep strike. For every one unit we get one deep strike. So having a 2 or 3 drop army limits our deployment tactics.
I think as a whole the grimghast problem is null. Power gamers will always do that whether its grimghast or the new hotness. If there where better alternative choices they wouldnt be picked as frequently. Also if the meta was slightly different people wouldnt feel like they had to pick them. They dont need nerfs as every one has something broken. Ultimately most players arnt competitive players so why should the top 1 percent dictate what gets nerfed when realistically they arnt that strong.
Death has been neglected for so long and now all I see is omg nerf death.