I usually never spotted any kind of critics on the zcash forum. Look over at twitter/reddit/trollbox/tradingview chat etc. nobody likes the idea that 6 guys did the trusted setup together days ago already.
In this setup one has to trust, that they won`t print money. No thanks.
They should have had Craig Wright and Gavin Andresen participate so we know it is really trustworthy!
Craig Wright is not trust worthy. The Gavin Andresen is more trustble. But unfortunately he endorsed Craig.