Highlighting Boeing's resistance/reluctance to be transparent, no wonder other World regulators are looking like giving the MAX a good look over prior to a stamp.
Certainly some pressure needs to be put on the top management at Boeing to change path and stop heading for the cliff, while saying all is well every second day.
By the time it comes to the "final test" if you do not know the outcome in advance, it is just another game of cards - this aircraft is not a pioneer, it is using known materials and methods it is not experimenting with cutting edge technology or methods.