So "perm- do the alternative then the Affirmative" is severance. There's an assumption made that the plan will happen in a guaranteed and immediate fashion due to the nature of fiat. The Negative could argue that this is not necessarily true in order to try to justify the permutation.
I think it's unfair to do that because the Affirmative can always just say "embrace their ideology, but then vote Aff" as a way to get around criticism.
The "vis versa" would be "perm - do the Affirmative then the alternative" - this isn't severance, but it is intrinsic. By separating the two, the Affirmative adds an element of delay which didn't exist before, which is unfair because it always pushes off criticism to the future and isn't as predictable.Go to the full post