Becsuse you don't move to the next phase until you reach a milestone. The embrace is the first step, to convert a small percentage of users of the original platform. Once you have those, you extend your features to have those users recruit more users to that specific instance or implementation, since they are more feature-rich or stable or whatever. Then once you have a critical point of users on your instance, you defederate from all others and develop your walled garden which now has all the users and the content.
This is also why medical studies never use accuracy as a measure if the disorder being studied is in any way rare. Sensitivity and specificity or positive/negative likelihood ratios are more common
Becsuse you don't move to the next phase until you reach a milestone. The embrace is the first step, to convert a small percentage of users of the original platform. Once you have those, you extend your features to have those users recruit more users to that specific instance or implementation, since they are more feature-rich or stable or whatever. Then once you have a critical point of users on your instance, you defederate from all others and develop your walled garden which now has all the users and the content.