low hash is more of a reason to worry, not less. Imagine if supporters of other coins purchased a number of scrypt asics & went around attacking other coins with 51% attack with the purpose of killing them off. The threat is there if KnC gets anywhere near their estimated performance. My view might be seen as a bit tin foil hat material, but given the number of hacks/scams out there I think there are surely a few people who have the will & skill required to exploit such technology in order to kill off competition to the coins they personally hold.