Very sad news.
What is the 'red window' in the photo above?
I wonder what the risk assesment for this testing concluded.
NTSB recommended risk assesments for flight testing after that Canadair accident a few years back.
Any owner who expects 100% safety needs to back that expectation with $$$. They need to pick a modern aircraft, invest in IS-BAO SMS accreditation, intensive crew training, and be prepared to cancel higher risk flights.