I don't particularly care as long as burn's patch damage is buffed for non-brutes/tanks. It's pitiful even on damage capped blasters, and they don't have taunt keeping things in it.
IG's definitely something I couldn't really argue against if it got hit, though I'm not sure of it's performance without procs. I don't really play rad melee.
In both cases, if they just nerf it and don't touch anything else, then I'm opposed to it. At the end of the day, burn being broken does not really impact the overall balance of the game, nor does it harm my experience when I team with some fire triad. In a game with as many disfunctrional powersets as CoH, priority should be on bringing the lowest sets up rather than wasting dev time on overhauls they are not prepared for.
Anyone who sets out to 'balance CoH' is embarking on a fool's errand, whether procs exist or not. The best possible course is to make every existing powerset not feel like garbage, and add more, harder content. Relentless ASF has been a resounding success, I'd say, in terms of introducing difficulty to the current meta.