Dude, the blast radius sucks. Even though it may do good damage it's hard to land a direct shot on infantry unless you're good at aiming. They're fine.
It does the lowest damage per shot, so it does the most per mag. Falcons only need one volley(one shot from each arm) to kill non-flak infantry, so if Pounders didn't at least have an extra kill per mag they'd kind of suck relatively as they require more uptime on a target as well as having a harder to aim projectile due to their drop.
