Just saying, but the whole idea of using a modpack (At least in general) is to be able to make 3 clicks and have an usable installation, so the people that do check configs for personal preferences are just a few.. Also, the problem we always have when updating and having to redo our configurations again is kind of a pain in the back.. So please, try to understand that fact, and even try to keep in mind that a lot of people doesn't even know how to get to their minecraft folder.. Thats the good and bad thing about modpacks, they are as easy to get as clicking twice, one for the link, one for instalation. But they also make users don't know what is going on in the background and, in contrast with normal installations, doesn't force them to learn...
The solution for this would be to offer different sets of configs for the people that don't know how to work with them, but, the FTB team is not slavery and we can't expect them to do all that work..
So, yeah, try to just ignore the fact that people complain or even make your signature with some info about cfg's for people that would try it by themselves... Btw, Rotarycraft for the win. I love it, I love its machines, I love the effort put into it.