That doesn't refute the point that IC2 is the only mod in the pack that uses exclusively EU. Other mods CAN use EU, but as you have stated those same mods can easily use MJ and there are more mods that only use MJ (TE, BC, RC, Forestry). Of course, UE also works for those, but UE isn't in the base pack. Also, as previously stated, while Factorization has Charge it can be produced using RC's steam boilers and a Factorization turbine.Not quite true. MineFactory Reloaded machines can use EU or MJ. In fact, MFR machines accept Universal Electricity power, too.
So you are partially correct, since most mods make use of MJ. Some mods make use of both EU and MJ, and a small number of mods accept power from multiple power-producing mods.
Anyway, anyone else notice damage immunity when wearing rubber boots? had skeletons attack me and creepers blowing up on me and they do no damage with just me wearing rubber boots. This isn't the first time I've noticed it either.