My wife told me about this guy she used to know... he was really good looking but as soon as he opened his mouth, forget it.
Any mod that FC makes is going to be like that - it might look good but not good enough to put up with the attitude and the behavior.
There's a lot to like about BuildCraft, and the biggest thing is that I don't need BtW to enjoy it!
I think the "balance" is only even for those using BtW only, and I don't particularly think that BC itself is imbalanced in any way.
I'm not sure why SpaceToad decided to help FC, and I wonder how long before FC alienates him, too - because it's clear that FC's "my way or the highway" attitude still stands.
I know everything I need to know about all this from the mouths of the developers themselves. Toad is cool, Elo is cool, Alblaka is cool... each of them is capable of accepting constructive criticism and even taking negative feedback with tact and grace. Only FC lacks that characteristic, so I'm unconvinced that the problem is "everyone else".
In short, any good ideas that BTBC might have are overshadowed by the "community" of fanboys and yes-men that assemble around FC.