Well, that is something I didn't know that saddens me.. I've really been waiting for Forge to unify some common aspects of various mods like some basic ores (copper, tin, silver, bronze, lead), liquids (fuel, oil, gas) and some other random stuff (a common circuit, rubber, rubber tree..) everything depends on forge, so making it wouldn't be that much of a problem.... I think..
And about the config, that wouldn't just override and make oreDictionary obsolete? I think that instead of doing that, if they are not going to add some minerals by themselves so moders only have to add their unique items without oreDictionary need, then they should make oreDictionary more powerfull instead of being able to make a default, because sometimes that will break some mods, I've found myself some times trying to use oreDictionary related items and not being able to make a thing with them for some reason.. But, with the no-Id update coming this may be solved if, for example, Forge tells modders to use the word oreCopper only, then there will only be one copper right?