Subjugators are pretty garbage. Perserverence does make your ships immune to disable, but it's meh now, and always was. Use it to repair your Motehrship, that's about it. The disabiling ability is a joke, heal is not worth it. Overall the thing is not worth the credits/metal. I find Hoshikos and Guardians only really worthwhile supprot cruisers in serious MP games.
Vasari tend to get by without. Best Vasari utility would be carrier with aoe heal. Sometiems I may go for self heal ability for Enforcers. Subverters are just so nerfed now I don't even bother with them. If I had them I think the shield debuf is now way better use of AM than the disable.