really, the greatest counter to hyper mitigation is guaranteed damage. My dice related paranoia means I've had basically 0 issue with palp aces beyond the skill of the player flying them
problem is we also have torpscouts, that counter hyper mitigation with gobs of dice but then end up countering everything else much harder instead
There almost needs to be a weapons or effect that caps the number of evade results that the defender can use in the compare results step. A ship could still throw around a two or three attack dice attack that has a decent chance of damaging high agility and mitigation ships without being particularly stronger against 1-2 agility ships .