I havnt leant as much bkiyus, but theres a certain connection to the learning i got from learning iyun style. There was life there, it went through my body. And the enjoyment after working for hours and finally breaking through was amazing. I believe even if later in life i won’t have the chance often to accomplish that, a bond was forged in my heart.
Didnt do so well for my self esteem tho, not covering so much ground. Also, many guys dont have the ability to cover ground on a less deep level and still retain an enjoyment in it. When trying to keep guys invlved in learning this may be a reason to learn iyun style.