Yeah the reactivity of the Hirelings are really few.. thats kinda bad and why i only bring one of then normally..
the only game i made with just Shadow as companion i kinda regret i bring just her and 2 hire to actually see all her unique scenes in the game..
(felt a little bit empty during the exploring..)
i already tested this with all the companions i like..haha
(Know i already know the best ones so when time cames i just remove from the party the ones i dont like.. becouse some companions like to Steell the best line of other will just say that.. Karlach is notorius for that.)
so far 500 hrs in going to 600 in a few hrs i beleave.
I have close to 500 hrs (not really proud of it) and have had all the companion interaction I need and I'm not into the pixel porn.
My Durge run through uses 3 hirelings.