Be serious, man, there's a million ways things could go wrong for Cointerra too, and ship date is ultimately more important than efficiency at this point.
Actually, I think price would be more important.
Something is only a competitive advantage if your competition can't match it. KNC already announced a $5k price in November--the likely earliest ship date for Cointerra. What Cointerra might have on KNC is efficiency, maybe, we don't know exactly yet or by how much. KNC meanwhile has an earlier ship date, and that matters way more unless Cointerra wants to drop their miner's price precipitously in Nov, sub $5k, which I doubt they want to do.