Hmm. Reliability seems relative. The 4.0 is reliable, and probably one of the most abused engines out there, considering how many have probably run momentarily upside down out on a trail somewhere, but a lot of the others are pretty generic. BMW made many 6 cylinders, some of which were their most reliable, and others (like the S54 and N54) that are among their least reliable ever made.
They also spelled Cummins as "Cummings" in the article.
The Honda 3.5 is great... unless you got one of the VCM engines.