If it turned out that the failed parachute had a history of using and misusing a number of cheap parts that weren't up to spec, I'm not sure there would be much

If it turned out that the failed parachute had a history of using and misusing a number of cheap parts that weren't up to spec, I'm not sure there would be much of interest left to speculate about. In this case, OceanGate has a well documented history of making poor and reckless engineering decisions. The fact that things went horribly wrong is probably related to one of the many corners they cut. It will be interesting if/when we get more solid information but until then most of the speculation seems pretty on point to me.