I found this a few pages in looking for other things:
http://forums.technicpack.net/index.php/topic,5824.0.html
My option is: EE is a supplement to the normal digging out the entire underground and leaving giant holes everywhere. If making other mods obsolete is a problem or if EE makes things "too easy" just turn it off or some parts of it.
Personally, I have had my very first experiences with EE on my current server and I use it as a means to skip the mining and smelting process as to speed up crafting other things. It can very easily lead to calls of OP, if you have a munchkin player and a newbie playing together. If everyone is on equal footing, as far as knowing how to use the things in EE, it is all fair.
I would say it really is a play style thing far more than an OP or newbie tool.