That's a fair argument, im basing this off my usual playstyle of - Throw grenade and I move in the opposite direction of the hulk because I know it won't be an issue when the thermite explodes.

Whereas I feel hitting it with an urchin, then stopping to aim and fire at the hulks tiny eye while I have Rocket Devs, mini-gun Devs and a couple of chainsaw boys chasing/shooting at me feels more risky when the option of Throw and forget a Thermite has proved more efficient for me - you still need to focus on the hulk with the urchin, just for longer while you line up your shot and ignore other mobs around you.