Parliamentary Voting System and Constituencies Bill

My noble friend has tried to merge the motives of people in voting for thresholds with the arguments for and against thresholds. He says that voting for the Cunningham amendment was motivated just by opportunism. He has, not I am sure with any malicious or impolite intention, also implied that those who have argued for a threshold in these debates have done so because they are against AV. However, will he not address some of the arguments on their own merits? For example, does not the fact that almost every European country has a qualified majority for constitutional change show that there is something in this argument?