I'm asking the below not because of any question about liability, but rather safety/due diligence. In part because I have a friend who was unharmed but crashed because of an engine failure caused by an engine reassembled with a part missing as part of an overhaul.
In this case, it seems to me that the shop that installed the engine would have no way of knowing about the camshaft problems in the rebuilt engine without effectively rebuilding it again. Or in other words, based on the NTSB report that engine was an engine failure waiting to happen, and the only way to avoid that is to be sure whomever is doing the rebuilds is following all the standard best practices. Does that sound accurate?
I know, it's a sample size of one, but still gives me yet another thing to think about, with respect to risk.