First, it is very refreshing that anti z position here is defended by a small but determined group that is not very eloquent. I could have written better responses for them. It really indicates that wider thinking charedim do not hold by that.
Also, just heard in R Lebowitz kinos about baryonim who wanted to put spear in r Yochanan to verify that he is niftar: people with agenda will eventually go to great lengths in defending their position.