Heavenly dao-level powerhouses were basically the top existences below dominator-level.
The level was the final goal most talents and geniuses aspired to get to.
Those who were lacking innately could not make up for it no matter how hardworking they were.
Those who could achieve dominator-level had to be at least at Aeon rank-8 in terms of life level. This was the main reason why there were many outstanding entities in history who were stuck at heavenly dao-level.
Life level decided the strength of one's physical body and God's soul and, to a certain extent, decided the toughness of one's Kingdom.
If one had a lacking life level, they would only be seeking death if they tried to break through forcefully.
Therefore, many powerhouses in the infinite universe were stuck at heavenly dao-level. Their number was merely slightly lower compared to the number of major dao-level powerhouses.