I think their numbering is messed up, I think they skipped over 85 and went to 86, then labeled 2 of them 87 until they changed this one to 88.
More details in this video, I'm glad he's paying close attention to all of the details like these. There are still going to be failures from parts defects, nothing is perfect, but at least people aren't going to be able to point at stuff and say, "That was poorly designed" or "That was under engineered" or "They went cheap to save a penny."
I'm also glad they switched to Nikasil. Sounds like it will make a difference in engine life.