CG_Meathead
A better solution could be to tweak the Leviathan's kit or the Sith Fighter's to call out the Punishing One in a way that would neutralize the advantage it gets versus that starting lineup. This would have the dual effect of making a very old ship more useful while also protecting the heavy investments into relic 9 Sith Assassins that a great many players have made to stay on top during Leviathan mirror matches. Altering the TIE Dagger in the way you're describing well merely create a new arms race towards relic 9 Sith Troopers and we'll be back in the exact same place as we currently are in mirror matches, only at a very heavy cost to players that they shouldn't need to make to balance out an oversight by the developers when designing the Punishing One. Rant over, but this would be, by far, the more player friendly option than altering the TIE Dagger.