Trolls were the most viable option for no-loss in the previous installments of KB too. But let's just get there and see... As things stand, there sure looks to be a way to do no-loss, but it requires a wicked game setup which I doubt we will see happening very often.
In the end, if one manages it, then it's manageable by all. KBAP/CW also had great and poor setups. Thing is, we can't tell before a scanner appears