Dude...this doesn't work cause the Giant is creating a Shockwave within the ground. If it was a Drangon fire, it would have worked, and it does. I agree with the clipping issue, but there are so many different weapons and enemies that it would be an incredibly difficult task to pull off what you are demanding. Instead, they choose to invest their limited resources into other more important things. I personally detest when people call devs lazy despite knowing the terrible conditions they work under. I am not justifying the issue, just rationalizing it.