That might be correct. I just added them recently, needs some more testing. Probably I forgot some recipes.
Wait what? Railgun?


About the splitting up you are definitely right. Maybe we should also think about "the one inserter" mod which let's you do all by config file. Because there's already quite a lot of mods which add inserters. And to have multiple inserters doing the same with different recipes gets kind of overly complex.
Thanks for your feedback. I will probably split these features for the future, such that it is more modular and people benefit also from single features if wanted.

@NoriSilverrage: Could you reproduce this issue with belt-sorters on the newest version? Or was it maybe only due to some migration? If it persists to be a problem I will definitely have a closer look at this.
@AlexTheNotsogreat: Yes rich iron ore is simply not existing yet. It would however be a good idea, also in respect to the early smelting problem.
I usually solved this problem by having several chests beside each other with input and output of certain items and then I just manually sort this from time to time. Not really a problem then. If you have marathon installed however, yes then I guess it's just going to take 10 times longer until you can automate this problem.