We are all entitled to our opinions however it is VERY DIFFICULT to come to such a decision as postponing a wedding. It is not done lightly and I am sure a lot of sweat and tears are shed before coming to such a conclusion. To judge the families in such situation is not only unfair but unkind. It is so easy for someone who is NOT in their shoes to give advice and to say why not do such and such. However when in fact it is YOU in the situation, knowing all the variables, then YOU understand WHY the decision that is made is the best one for everyone involved.
Mazal Tov to both mishpachas and hatzlocha to all.