They are but tbh you can easily process most things other ways and just use multiples. I think the only exception is I think compressor, thermal centrifuge or ore washer(stone dust), maybe one or two other machines. The metal former is a lot better than the metal press however, but then you could just double your resource cost for plates and use forge hammers, it's probably just ask quickly if you automate it. Resources aren't a huge enough issue that that would be a problem.
However in the end I don't see the hate for IC2. Most of the really complicated stuff you don't even need, the only big one that you do need is a single nuke to get a single plutonium and the machine to make the mining laser. Everything can be powered with MV or HV wire connectors so you don't even have to touch the IC2 power system. Yes it's not as simple or easy as most other mods and most other mods overpower it. However I don't see the issue with that.