In the glaviz vendetta when you have to fight the rare ship called styll deep tracker, it has the ability Stryll Disruption that lowers you degense by 20% for 15 mins. My question is why does containment cage NOT remove this effect? or is it considered a trap?

NPC effects are currently treated like traps that can be 'set off' multiple times by attackers. However, I think it would make sense that the containment cage be augmented to include those.