There is no point in playing against you as Erebus on Prison as Rook
.
The problem lies in Pantheon itself, not in the N/A mechanic. If Stardock would change Pantheon a bit, we could revive it and 1v1s on Prison won't be happening that much anymore, thus giving new and medium players, especially as Assassins, a chance again.
Changing the N/A time would only increase your wins and nothing else. You won't have more diversity in Pantheon through that, you won't have more fun, and others won't have more fun either.