I personally think that not every bomb should have to be a nuke.
Also, increasing the power of C4 would open up a new field of simulations: Cannons. Yes, there are already cannons, but these are complex and unrealistic. By increasing the power of C4, cannons that are both destructive and have destructive firepower could be created more easily: Just create a barrel, fill it with c4 or nitro, and then place an "ammo" powder in.
I don't know about you, but whether or not a device is destroyable is a very big thing to me.
I still don't see what is wrong with increasing the power of C4. It shouldn't affect the majority of the models that use it, and I imagine that it would be easy to code......
Why not? So what if its a minor feature? The more the better.