It does, but that's a blob you want to remain mobile. I've done this (albeit with a 30 man blob) time and time again and every time I put autocannons in with them I regretted it. I also play mine with krak grenades for all instead of melta bombs on the sergeants, but that's because I'm the one who usually charges in with AV13 Walkers (obvs when I'm not playing Guard). Keep in mind though, in any wargear instance, that most of your unit will not be getting to attack each phase. Only models within 2" of an engaged model from their unit gets their attacks, so keep those axes handy (also why I prefer krak, more chances to attack and typically enough dice for a wreck even on 6's to glance). The servo-skulls likely won't help your barrage weapons backfield, but hey. Maybe you face someone that advances and doesn't take them out handily.Inquisitors and with the combination of power axes and rad grenades it should actually make the blobs scary.
I would maybe make one of the blobs all flamers and axes, and the other lascannons (alternately, heavy weapon team squads?). None of your artillery can Explode! vehicles since its all AP3 or worse. I would also drop anything I could to make both Inquisitors Psykers so they can cast Prescience on their blobs and maybe even get that swanky 4+ invuln power. Alternately (and if you want to spend more points) I would get Primaris Psykers (with axes, of course) for the same thing. 60 points to get the Inqs up or 100 for two Primaris dudes.