It would be nice if grenades were lowered to 20 each but meh, noone uses them because specimens avoid em, not cos they suck... oh wait
LAW should be a powerhouse on its own, but Pipebombs are an integral part of the Demo and with only that weapon you require something more... personal for defensive purposes. But allowing the M79 too is too much when really the LAW should be considered powerful enough to be worth the tradeoff for lacking a more versatile weapon.
Joker the LAW isn't even close to viable... it does a beautiful job of creating lots of red mist (and white smoke) with its increased range but as of now its nothing more than a tool to thin out the enemy ranks, which lets be honest the M32 and M79 can do better and for longer periods. 15 ammo is too limited even on Hard, never mind Suicidal and its damage isn't high enough to be a decent assist for Fleshpounds.
Its good fun, but not viable.