Single digits would be the best thing for the currency right now. Clear out the speculators, let the regulators laugh us off again, and think hard about developing ways to avoid this kind of bullshit going forward. Most importantly, it would send a clear signal that getting 30+% of hashing power is not a desirable thing, because it crashes the currency and makes all of your investments worth nothing. Then maybe pools won't be so nonchalant.
Bring it on.
I understand your concern, but why do you think that GHash.IO not understand the senselessness of the "51% attack"?
Is they stupid idiots? Do they want to compromise a network and turn their assets into dust?
In my opinion they are clearly indicated their position and we can only hope for their prudence. It's not as small as it seems, because the rich people always have common sense and logical thinking, otherwise they would not be rich.