redstone signals not being conducted properly with IC2 foam and hardened foam cables

I don't really know if this is a feature request or a bug, but cables covered in foam, do not transfer the red stone signal. It may be usable if the foamed cable would act as a normal stone block regarding the redstone signal, since it would simplify networks a bit. I will post a picture so you can see for yourself what do I mean:

Even better: build some kind of redstone signal cable transfer system

No, I mean regular conductivity like in vanilla minecraft. You don't get rails of redstone signal if you power up a row of dirt for example - just the first cube gets affected, right ?
But - when you place this kind of IC2 block, it doesn't conduct the signal, so you end up making complicated and robust designs, dodging the cables all the time, just to power down your reactor when the MFE unit gets filled.