I think the issue could be the following. I do not know anyone’s mind, so I cannot say Sybe’s case falls under this category.
One must follow the Path in a systematic way. There are two Eightfold paths.
– One must have completed the first mundane path and removed the ten types of miccha ditthi before starting on the Noble Eightfold Path. That means one should have the “right mindset” to be able to comprehend anicca, dukkha, anatta.
– If one has any of those ten “wrong views”, one’s mind is not capable of grasping Tilakkhana.
– For example, if one does not believe in kamma/kamma vipaka, then the whole basis of Tilakkhana falls apart. Such a mind would not accept anicca Nature to be correct.
This is explained in many posts. See, for example, “Micchā Ditthi, Gandhabba, and Sōtapanna Stage.”
Again, I am not saying that Sybe’s case falls under this category.
Another possibility is one may not have been able to make the “connection.” I suggest the video which I posted yesterday under a different topic.
“Good Discourse on Anicca, Dukkha, Anatta”
Please post any comments on that video under that topic.