I don't think that Extra Utilities is actually too great a fit for Magic World. About all I'd go for from it is the spikes, magnum torch etc., and cursed earth. I think part of the fun of Magic World was having to come up with alternative solutions because some of the standard fallbacks weren't available. Setting up a spawning room for a Well of Suffering without Cursed Earth was a fun project that took me a fair bit of time to get finished, as I wanted to do something other than light up the entire area apart from one spawning room.
I enjoyed having some of the convenience methods stripped away from me. It's like a more relaxed alternative to stuff like Agrarian Skies, IMHO. In that, you can get convenience stuff but it's more expensive and so requires more resources, whereas in Magic World, it's reasonably priced, but you have to find an alternative method for stuff. With my spawning room, I ended up making it in the nether, with wrath cages set to spawn skeletons, and using golems that were outside the range of the ritual to feed the coal and bone drops into alchemical furnaces to power the wrath cages. That's something I would never have done in another pack.
