I think the idea is that timelines only exist because of decisions. Not just decisions, but intentional decisions. For example, the timelines where Carlos or Diana press the yellow button and kill 6 people would not exist without Delta intervening with the Mind Hack, because they would not have made that decision themselves.
People tend to act in certain ways, and it's not implausible that these tendencies will ultimately lead to only a certain set of outcomes.
In this way, Delta must be intentional in order to create a timeline where everybody's powers are fully awakened, or one where the AB project occurs, or one where he and Phi are born.
But Akane specifically said there are worlds which does not have any life forms. Furthermore, it makes even less sense considering the dice game had different outcomes despite having the same intentions.
You're onto something, but I don't think there is anything in the game that supports this theory. I do hope you are right though.