I mention this in one of the paragraphs in the article although it might not be as clear as I would’ve wanted it:
“For those pilots who couldn’t prove that their return was caused by factors outside of their control, their treatment would be a bit different. Although still not executed these pilots would receive some sort of punishment be it physical or mental. These punishments were not to be too severe as the pilot had to be ready for another flight at some point in the future so nothing that would damage that ability would be performed. Even so, this had a limit as seen with one pilot who returned 9 times from his Kamikaze mission. He would be executed on his 9th return for cowardice.”
To paraphrase this whole paragraph those who returned without an excuse and were suspected of cowardice were disgraced and received some sort of punishment but not execution. You have to keep in mind that these were some of the best pilots Japan had to offer and executing them would’ve been a waste. They would’ve been placed on a future kamikaze mission expecting to be successful this time.