While the steps had done more than he had expected, the true test was the final round. Lind had not taken any shortcuts with any of it.
Instead of lightning, they faced an experience focused on each Mystery layer of his dantian. Immortals could not withstand Mysteries but he had created something on par with the Divine Ascension Tribulation unlike anyone ever before.
Only someone like him that had access to all 18 elements, the Mystery of Defiance, and Origin Mysteries could pull it off. Such a high bar meant it was highly unlikely that anyone could repeat it ever again.
The reason he made it was 2 fold. It was, of course, to fully reveal his final Mystery and to test something. The former was just like the Heart of Origins. He unlocked a new possibility for others and it loosened his bottleneck.
