I don’t think it should be removed, I don’t use it myself but I don’t think it should be removed from Tekkit. If you don’t like it find/make a server which has it or parts of it disabled, simple. I think the truly over powered items are chunk loaders on servers. With your chunks loaded, an overnight sleep will give you riches beyond your wildest dreams, exaggerating of course. This is true for collectors, solar arrays making UU, Red Power frame and buildcraft quarries. All of these are processes which are meant to take hours or days to complete yet with a chunk loader block all of these can be achieved in your sleep.
Mind you, I am not hating on chunk loaders, they are great things and essential for many aspects of he mods. I just feel they are easy to abuse.
Also remember Pahimar is working on EE3 and he said he will make it more balanced and not a kinda creative mode.