Divergent vs convergent are steps in facilitation of a longer process that starts online and continues in person.
It is a false equivalence to attempt to differentiate the 2 proposals on this distinction as the final outputs for the Core track are convergent.
The Core work starts in the online 4-week onramp, on the IRL day it starts with whole group work, breakout steps to avoid group think, then individual and small group work is assembled into whole group work with final convergent decisions together.
Facilitation methodologies such as the double diamond of design and 1-2-4-ALL from Liberating Structures allow for the best of divergent and convergent thinking, and individual, small group and whole group facilitation to be exercised across a series of activities:
https://artkai.io/blog/double-diamond-design-process
https://www.liberatingstructures.com/food-for-thought/post/2198512