I think a saw a Youtube clip (Scotty, maybe?) that explained how CR generated their reliabiilty reports and it was based on number of incidents per 100 cars. It did not take into account the type of incident. Now that I think about it, it probably was Scotty since he railed against CR for putting a Nissan Sentra above a Toyota Corolla as the #1 most reliable car.
Here's a silly example - a hundred 2022 Yugos have 5 incidents: 3 engine explosions that killed every passenger and 2 transmission failures that caused the car to dive off a cliff, again killing every passenger inside. A hundred 2022 Corollas have an odd issue where the 11 of them had their radio volume control knob fall off. Clearly, because the Corollas have more than twice the number of incidents, it's a less reliable car than the Yugo. Makes sense, no?
Also, one other thing to note about that CR report on the 22 Yukon: it's estimated reliability. They don't have enough data so they use existing models to "predict" the 22's reliability.