Just sharing an increasingly common experience I've been having with these two perks. In several recent combats with Deathclaws and Nightstalkers, these perks have directly contributed to my death, as my PC stares slackjawed at the summoned help for several extra seconds of slow-mo while he gets torn apart. Turning off the kill-cam does not alter this experience. They really need let you move while your help is present, or pause the rest of the world while they work - as it is they are active detriments in many situations, especially against fast close combat enemies.