I read somewhere it also allows us to be more flexible, in terms of trading future firsts because of the Stepien Rule.
Instead of having to deal with the Kemba issue now, in 2022, we have already dealt with it by losing our 2021 first. We can now trade our 2022, 2024...etc. firsts (or 2023, 2025...etc.).
Whereas if we had kept Kemba and only now decided to move him for our 2022 first, that affects which other firsts we can package in a big move.